Meet Our Guides


Saul Singleton

Tour Guide/Hiking Guide
I grew up in Northern Utah, where I was introduced to hiking and backpacking by my Dad. It was there that I developed a true love for the mountains.

“If you are on my tour, ask me about the unique experience I had giving a one-of-a-kind tour for Middle Eastern royalty.” – Saul Singleton

I spent my college years hiking the Coastal Mountains of Central California. I began my exploration of the Sierra Nevada Mountains after moving to the Yosemite area in 1984. I found my true calling in 1992 when I became a professional tour guide and hiking guide in Yosemite. My love of the Sierra and experience as a guide allow me to share with you a unique and passionate insight into Yosemite.

The tremendous forces of nature, from thunderstorms and forest fires, to freezing winters, floods and rockslides, will keep Yosemite forever changing. I am still discovering Yosemite, as the dramatic turn of each season brings new color, life and opportunities for exploration. I am always thrilled to invite new people from all walks of life and from all over the world to share my excitement as we discover Yosemite together.

MarshaBMarsha Eason

Tour Guide/Story Teller
I was fortunate enough to grow up with grandparents and parents who worked in, lived in and loved the Sierra Nevada Mountain range.

My grandfather, Herbert E. Wilson, was the author of a book called The Lore and the Lure of Yosemite. He was a naturalist and story teller and participated in the memorable fire falls at Curry Village.

“If you are on my tour, ask me about my back country trip out of Cedar Grove, where a bear followed us from camp site to camp site.” – Marsha Eason

I was born and raised on a cattle ranch in Three Rivers, which sits at the base of Sequoia National Park. I was introduced to the back country of the Sierra by my father, who was a packer in his youth and owner/operator of Horse Corral Pack Station. Vacations were trips to the high country where the days were spent hiking, fly fishing and learning about the many mysteries of Mother Nature.

In 1999, after working in the medical field for 20 years, my husband Wayne and I decided to return to the mountains we grew up in. I have been guiding visitors through the wonder of Yosemite ever since. I love sharing both my experiences of these mountains and the history of the people that were here long before us. The beauty is here for all to see, but it doesn’t mean anything unless you hear the story.

I reside in O’Neals, below the South Gate of Yosemite and on the Scenic Byway. Wayne and I continue to ride and pack into the Sierra Nevada and we’re teaching our grandchildren to love these mountains just as much as we do.

GlennBiocGlenn Bennik

Tour Guide/Hiking Guide
I remember my days as a young child when my family frequented Yosemite National Park. My Father taught me to, “glare into the Merced River from Sentinel Bridge, look for trout and capture the reflection of Tissiack (the Miwok name for Half Dome) in the Merced River.” I was so awed by the beauty and geological formations that I took a National Parks course in Junior College.

“If you are on my tour, ask me about the time a buck with a full rack stuck his head in the door of the bus.”
– Glenn Bennik

I recall the night a friend and I drove through a blizzard to ski at Badger Pass. As we rounded a bend between Rail Creek and Chinquapin, we came to an abrupt stop for what we believed was a Gray Timber Wolf. (Since Yosemite has never been wolf habitat, this was most likely a coyote.) We drove around the large (beautiful) creature as he sneered and snarled at our headlights, looking at us as though we were the next meal. What a thrill it was!!

I feel that Yosemite and the area surrounding the Sierra Foothills have given my family (Marsi and Brandon) joy, security and good blessings for the last 15 years.

I strive to share my own personal feelings and memories of Yosemite on my tours. My 12 years of guiding has taken me to the highest elevations of the Sierra, the incredible back country scenery, the majestic Giant Sequoias, Yosemite Valley, Tioga Pass, an occasional fishing adventure and more. Sharing knowledge of this beautiful landscape is exactly what the park’s early protectors desired. Come with me on a sunset journey to the top of the South Rim to witness the stunning Alpenglow and talk about geology.

GrantGrant Bishop

Tour Guide/Hiking Guide

“If you are on my tour ask me about the time when my guests and I saw a wedding in the sky.” – Grant Bishop

I grew up in Southern California where I lived with my parents. We would come to the Yosemite area in the summers to camp, fish and hike. We loved it so much, the day after my high school graduation we moved here.

I have spent a lot of time hiking in Yosemite as well as in North Fork, Mammoth Pools and on the Scenic Byway. I enjoy reading books about Yosemite and it has been great working with Discover Yosemite because I love to share what I learn with my guests. My favorite area to explore and share is near El Capitan.

koki_bioKoki Bishop

Driver/Tour Guide
I grew up in a town named Covina in Southern California. My husband and I fell in love with the Mariposa/Oakhurst area while visiting friends who had moved here. We bought a vacation home; then decided to move here full time in 1987.

“If you are on my tour, ask me about the time I saw a Mama Bear and cubs in the Valley” – Koki Bishop

During the school year I am a school bus driver. When I began driving 89-passenger school buses on the winding Mariposa roads I knew I’d found my niche. I truly enjoy being outdoors every day and getting to know the children. I’ve been driving school buses for 18 years now. I am very thankful to live and work in such a beautiful environment, with clear skies and lots of trees.

I also love having the opportunity to drive and give tours in the summer when the kids are on summer break. Even though I’m still working, I feel like I’m on vacation too. I especially enjoy seeing my guests’ excitement when they encounter the incredible beauty of Yosemite.

“Ranger Ralph” Fairfield

Tour Guide/Driver
My mother was a kindergarten teacher who had the summers off and would take me to Yosemite for weeks at a time. I grew up riding my bicycle throughout the valley, picnicking at Fern Spring, climbing in and around the “Indian Caves,” camping by and floating down the Merced River, hiking to Half Dome, listening to the wind in the trees and watching the Firefall.

“If you are on my tour ask me about the squirrel friend I made near Vernal Fall when I was seven!”- Ralph Fairfield

I spent my 21st birthday in the park, and as I gazed at the beauty of Half Dome, Glacier Point and the Royal Arches, decided then and there that I wanted to be a Ranger. This was May, and I went to the administration building to request an employment application only to learn that they weren’t taking any more applications until January. I then went to the State of California, signed up to be a State Park Ranger and enjoyed 30 years with the California State Park system.

My wife and I retired near the park, so now I have the privilege of visiting Yosemite on a regular basis and sharing its beauty with people from throughout the country and around the world! Let’s enjoy Yosemite together, shall we?

Joe NelsonJoe Nelson

Tour Guide/Driver
I was raised in Florida where my dad was a biology professor and outdoorsman who instilled in me a reverence and respect for all things natural. From the age of 8, I spent many summers with my family hiking and camping in the Blueridge Mountains of North Carolina and Tennessee. We did a tour of the western states in the summer of 1968 when I was 14 years old. Of all the parks we visited that summer, Yosemite had the most profound and lasting impression on me. We were among the last group of visitors to the park who were ever allowed to drive our car through the Mariposa Grove and the Wawona Tunnel Tree the before it fell the following winter.

My impression of the park from that early age was my impetus to return in 1999. I worked in the park as a shuttle driver in Wawona and Yosemite Valley and I drove tram tours through the Mariposa Grove of Giant Sequoias until the trams were discontinued after the 2014 season. I have a deep and abiding love for Yosemite and its history and I love to share my passion with our visitors to the park.

Dave bio photoDave Morrow

Tour Guide/Driver

“Ask me about the time I saw five mountain lions together.” – Dave Morrow

My career in Yosemite began in 1974 when I was hired by the National Park Service to be a member of the horse mounted patrol. I lived in Yosemite Valley for three years and in late 1976 and moved to Wawona where I was a Ranger until 2000. I then switched into the Maintenance Department where I worked on the road maintenance crew until I retired in Dec. 2014.
Working for the National Park Service and living in the park gave me an opportunity to hike, ride, ski, fish, raft, and occasionally fly over the park on fires, search and rescues, med flights, etc.. I got to see the park under all sorts of conditions; sunrise, sunset, crystal clear starry nights, flooding rivers, snowstorms, etc.. Can you imagine growing up in Yosemite like our two children did? They got to walk out our door and hike, swim in the river or sit by the fire and watch a snow storm, then go sled down the hill.

I’m looking forward to sharing Yosemite with you, telling you about some of my experiences and hearing some of yours.

RogerRoger Youders

Tour Guide/Driver

“If you are on my tour ask me about being stalked by a mountain lion or confronted by a bear.”- Roger Youders

I was born and raised on a farm not far from the western slopes of the Sierra Nevada. In my youth I enjoyed backpacking trips as an Explorer Scout. My love of the high country as a teen was the beginning of a lifetime of learning about and experiencing Yosemite and the Sierras. Among many highlights was seeing the Firefall off of Glacier Point. As a Telephone Lineman I climbed trees to maintain lines into Cedar Grove in Kings Canyon National Park.

My family enjoys living in this part of the country and having hiking trails in our own back yard.

Of all the National parks, Yosemite is my favorite. Fresh air, flowing streams, majestic falls, wildlife, beautiful vegetation and unique rock formations captivate the senses. Now I get to share this majestic park with others.

Greg_BioGregg Parker

Tour Guide/ Hiking Guide
As a child, I developed an appreciation for exploring wild places on family vacations. Camping, fishing and experiencing places like Mammoth, Tuolumne, Yosemite and ghost towns helped set my life’s direction in motion. In junior high, I thought about being a park ranger. I studied recreation and natural resource management in junior college and jumped into work adventures that became my career.

“If you are on my tour, ask me about tracking and handling mountain lions or how I got the nickname, Wolfboy.” – Gregg Parker

I’ve been a Nature Conservancy preserve docent, YMCA summer camp staffer and railway tour guide at San Diego’s Wild Animal Park. I’ve guided mission tours and caving, kayaking and mountaineering trips. Incredible places like Mexico, New Zealand, Joshua Tree National Monument and the High Sierra have been like playgrounds, universities and churches for me. I’ve taught sixth graders natural science at Cuyamaca Rancho State Park (near San Diego) since 1990. I spend much of my summer time in Bass Lake leading backpacking expeditions, teaching rock climbing and interpreting natural history for groups visiting Southern Yosemite.

Whether driving or hiking, with individuals or groups, it has been a truly profound pleasure to share the history and majesty of the Yosemite area. I think what Albert Einstein said is true: “He who can no longer pause to wonder and stand rapt in awe is as good as dead; his eyes are closed.” I like to believe everyone’s eyes are open here.

LynnLynn Fullmer

Tour Guide/ Hiking Guide
I was born and raised in Fresno. I enjoyed many camping and fishing adventures to various sites in the Sierra National Forest adjacent to Yosemite. Rides on the Yosemite Mountain Sugar Pine Railroad intrigued me and I even attempted to replicate the setting in a HO scale model railroad at home. Many trips were made to Yosemite Valley to see the waterfalls.

“If you are on my tour ask me about the time I walked on Tenaya Lake with my wife on New Year’s Day, 2012.” – Lynn Fullmer

In 1979 I moved to the Oakhurst area just outside the South Entrance to Yosemite National Park and operated an appliance repair business with my dad that my son now owns. Over the years there have been many more trips to Yosemite with friends and family. Everything is always in the same place but everything is always just a little different. Regardless of the season, the beauty, grandeur, and awesomeness of the rock formations and waterfalls never disappoint!

One beautiful moonlit night a few years ago my now wife, Julie, accepted my proposal for marriage while taking pictures of the view from Washburn Point. Since then we have enjoyed many trips to Yosemite to admire, and photograph, the views from Washburn and Glacier points as well as many other places in the park. Several times a summer we will take a ride through Yosemite on our Harley. We ride over Tioga Pass and out the East entrance to the town of Lee Vining for lunch and then return catching all the views from the other direction!

My wife, Julie, works at the Yosemite Sierra Visitors Bureau as the Director of Sales. She lets me tag along to the many travel shows around California to share the wonders of the area with those looking for their next vacation opportunity. I’m looking forward to sharing the never ending beauty of Yosemite National Park with you on my next tour. From the Giant Sequoias to the mighty falls, from Glacier Point to El Capitan and of course, the picturesque Half Dome! Hope to see you soon!

SteveRSteve Riley

Tour Guide/ Hiking Guide
I grew up an “army brat” and lived all over the world – from Hawaii to Germany and many places in between. I discovered Yosemite after college, and loved it so much I moved there. While there, I got married and my wife and I had our two daughters as we lived in the Valley.

“If you are in my group ask me about the Bear Cave.” – Steve Riley

I also wrote a children’s book about a little raccoon that lived under my porch in Yosemite and that little book launched a new career. So now I am the author and illustrator of the Little Ty Cooney National Wonders Series, and I get to travel all over the country and teach kids about writing and illustrating and the Parks I love so much. While I am not traveling I love to take tours into Yosemite -it makes the park new all over again to show it off to folks who are less familiar with it than I am.

Bob Harris

Photographer / Tour Guide / Hiking Guide

As a 5th generation Californian I have always felt a sincere appreciation for the unmatched scenic diversity that this state has to offer. Growing up in California, I loved exploring the mountains, beaches and deserts. I have been fortunate enough to travel to and photograph 40 of the 50 states. Some of my images have won contests and been displayed in art galleries. Most of my personal favorites were taken in the High Sierra/Yosemite region. From a scenic beauty perspective it does not get any better than this.

“If you are in my group ask me how to take pictures that look like postcards with your camera phone.”-Bob Harris

For the past 25 years, my weekends and vacation times have always been spent out in nature exploring and recharging. Fortunately a lot of this time was spent in Yosemite. Recently I moved to the Yosemite area to pursue my lifelong passion of capturing the scenic beauty and helping others to do the same.

I would love to share this experience and knowledge with you so that you can truly experience the splendor that is Yosemite National Park.

SteveCSteve Cruikshank

Tour Guide/ Hiking Guide
I started driving shuttle buses in Yosemite in 1990, taking people to Tuolumne Meadows and all through the Park. Although my commercial bus driving career started with Greyhound, once I drove in Yosemite I knew there was no turning back. That is when I made my home in Mariposa.

“If you are on my tour ask me about the 300 pound stealthy bear I saw while camping at Cathedral Lake.”
– Steve Cruikshank

I had the wonderful experience of living in a tent cabin at the stables in Yosemite Valley and would spend my evenings at camp fires with backpackers as they would tell their stories of Yosemite’s 800 miles of trail. I fell in love with all the wonders in the Park.

Every day in Yosemite is exciting to me. I always find something new, even to this day, 24 years later. That is why I joined the guides at Discover Yosemite. I love to share the things I learn about Yosemite. Like, just not long ago, I discovered that there is a 100 foot tall ponderosa pine tree that is a third of the way up the face of El Capitan.

I feel fortunate to see my guests through the lenses of their cameras as they share a pose with Yosemite’s wonders behind them.

DeBioDe Karlen

Tour Guide/Hiking Guide
My father was an amateur geologist with a flair for adventure and exploration, so summers were spent hiking Colorado’s mountains and searching abandoned silver mines. The marvel of engaging our natural world is second nature to me, and to be able to pass that wonder along to others is the joy of being a Yosemite guide. From our remarkable history, to native plants and animals, amazing geology and on and on…there’s no end to Yosemite.

“If you are on my tour, ask me about my encounter with a rattlesnake and how I learned all about his “social distance” requirements.” – De Karlen

Prior to guiding for Discover Yosemite I lived in California’s desert region where I worked as a desert jeep guide. Before that I was a flight attendant, traveling throughout the world. So for me, talking with people from all over and making sure they have a good time is fun and adventurous.

I’ve also been a freelance photographer for many years, with publications in Architectural Digest, Garden Design magazine, LA Times Magazine, calendars and more. So if you have an interest in photography, you never know what mischief we can unearth. And, of course, we’ll look at flowers, trees, birds, monster granite mountains and lots of other stuff – bring your binoculars.

JohnRJohn Rumohr

Hiking Guide/Tour Guide
My father was a travel enthusiast. He loved to plan elaborate trips that took our family to many countries and continents. Through those travels I learned the value of planning a well -thought out trip and the importance of careful observation to get the most out of a short visit. As I grew up I acquired my father’s passion for travel and exploring.

“If you are on my tour ask me about day hikes and family oriented things to do during your visit to the area.” – John Rumohr

My first visit to Yosemite got me hooked and I ended up making California my home. Since moving here I have spent a great deal of time exploring the vast and varied landscape that the park has to offer. I particularly enjoy the remote areas that are only accessible by trail, and taking in the uniqueness of each season that seems to transform Yosemite into a brand new wonder. I don’t seem to tire of the views and sights that continue to inspire my faith! Nothing beats taking visitors to this area and helping them get the most out of a truly exceptional location.

JerryBioJerry Anderson

Hiking Guide/Tour Guide
I was born in Los Angeles and grew up in Encino in the San Fernando Valley. My family and I traveled and camped all over the western United States while I was growing up, but I always loved Yosemite and the Sierra the most.

“If you are on my tour, ask me about rock climbing in Yosemite.” – Jerry Anderson

In 1961, when I was 12 years old, I started rock climbing in Southern California. I spent my first summer climbing in Yosemite in 1965 and in 1966 I moved to Yosemite full time. I have lived, climbed and back packed in Yosemite and the Sierra ever since. I am married and have two grown children that still consider Yosemite home.

I started guiding rock climbing, hiking, back country and natural history tours in 1970 and have been doing it ever since. Meeting people from all over the world and all walks of life and sharing Yosemite with them is a very important part of my life. People are the key to preservation. Hopefully I will be able to pass on an enthusiasm and a feeling for how important it is to preserve special places like Yosemite.

HeidiBiocHeidi Vetter

Photographer/Tour Guide/Hiking Guide
Being a landscape photographer, I could not ask for a more beautiful and awe-inspiring backyard than Yosemite National Park and the High Sierra Range of Light. Photography has been the focus of my life and it gives me great pleasure to share both the images and my experiences of nature and all her wildness.

“If you are on my tour, ask me about the night a string of rider-less horses came through my high sierra camp at midnight” – Heidi Vetter

As a 20 year resident of Oakhurst I have had the satisfaction of owning a successful photo lab and raising my children under the majesty of the mountains.

In the summer of 2002 I spent 90 days solo hiking the Sierra with my large format camera. It gives me great joy to be able to share the experiences and insights I gained from that solo journey.

As a member of the guiding community I am now able to impart to others the love and appreciation I have for our mountains. I have a special bent toward introducing women to backpacking and wilderness photography.

Dan_Bioc“Yosemite Dan” Carter

Snapshot Taker/Tour Guide/Yosemite Sierra Pundit
My connection with Yosemite actually started before I was born. You see, my Mom and Dad honeymooned in Yosemite and nine months and one half hour later I was born. My Grandmother, who was ¼ Osage Indian, told me that Yosemite isn’t in my blood, it is in my genes.

“If you are on my tour, ask me about about the “900 lb. gorilla” I presented to the National Park Service administration in Yosemite.” – Dan Carter

I see Yosemite and the Sierra Nevada from a different point of view. I’ve seen them through a camera lens, through the eyes of agencies in charge of managing them for us, through the eyes of my children and grandchildren and through the eyes of the Native American people whose ancestors lived here as mine lived in the Midwestern Plains. During my tenure as Executive Director of the Yosemite Sierra Visitors Bureau I also saw our region from a visitor’s point of view.

In the 20 plus years I’ve lived here, I’ve explored the trails, back roads, and byways of Yosemite National Park, its gateway regions and the central Sierra Nevada whenever time allowed. My personal goal has always been to educate others, instill in them a love of the outdoors and connect them to a way of life that is fading with every sunset.

Lynnea_BioLynnea Anderson

Tour Guide

“If you are on my tour, ask me about growing up in Yosemite.” – Lynnea Anderson

I grew up In Yosemite and spent my childhood backpacking, fishing, rock climbing and skiing throughout the Sierra Nevada mountain range. I have traveled through many continents, and I can easily say that no place is more special to me than Yosemite and the Sierra.

My parents taught skiing in the winters at Badger Pass and I started volunteering at the ski school when I was 14. When I was 19, I began guiding my own hiking, backpacking and rock climbing trips. Living in such a beautiful place makes sharing the park and the uniqueness of each day a real joy.

JennifersBioyJennifer Swartz

Reservation Specialist
Have you ever hiked along a mountain trail early on a crisp April morning, hundreds of feet above a river rushing through the rocky canyon below, just to catch a glimpse of springtime dew drops gracing the delicate petals of a wildflower?

Or when was the last time you camped among the pines to watch the moon rise above lonely, rugged mountain peaks? Can you picture yourself leaning back against a rock, to do nothing for the next hour except close your eyes and listen to the great symphony of nature?

I have lived in the Yosemite area for thirty-one years, and some of my most vivid memories come from times my family and I spent in our beautiful, majestic Yosemite National Park– hiking the waterfalls, picnicking in grassy meadows, and breathing in the clean air and refreshing smells of the great outdoors.

These memories have given me an appreciation of Yosemite that I love sharing with others. With ten years experience in customer service and the tourism industries, I can’t wait to take your call and make your reservation for a trip you’ll never forget as you DISCOVER YOSEMITE.

danaBioDana Richter-Vint

Reservation Specialist/Graphic Designer
I have been fortunate enough to be raised in the Sierra Nevada Mountains just a bus ride away from Yosemite National Park. As the daughter of a tour company founder I had the pleasure of spending my summers and school vacations in Yosemite. Even as a child the sights were awe-inspiring. I was able to learn many facts about Yosemite and different clues to remember these facts.

I learned how to ski in the park at Badger Pass, starting on Turtle, the bunny slope, at age 6 and racing past my mother not long after that. P.E. classes throughout grammar school included ski lessons at Badger once a week. I also have great memories of field trips to Yosemite and doing many school projects about the park. I have chosen to stay in this area to raise my son in the same surroundings that I love so much.

As a graphic designer I was given the opportunity to design the website for this company. It has brought back many memories from my childhood. I am excited to get back on a tour and Discover Yosemite once again. I will also be working the reservation desk and will be happy to answer any questions you may have.

AngelaAngela Fairfield

Reservation Specialist
My very first steps were taken in Yosemite. Since it was a favorite vacation spot for our family, we spent time there nearly every summer growing up. At 14 I first hiked Half Dome and was awed by the spectacular panoramic view. In recent years I’ve been blessed to take my own daughter on many hikes and picnics throughout the Park; her first visit being when she was only 5 weeks old.

When I’m in Yosemite, my favorite thing to do is watch the sunset and moon rise from Sentinal Dome.



Arin_BioArin McKenna

Writer/Guest Guide
For years I dreamed of getting to Yosemite, and when I did I ended up staying for 10 years. I am still amazed that I managed not to drive off the road when I got my first view of Yosemite Valley. I have never lost my love for this truly awesome place. I began giving tours of Yosemite shortly after my arrival there and continued to do so until I moved to Northern New Mexico, my heart’s home.

I continued working as a tour guide in Santa Fe. At present I am a group leader/tour guide/teacher for Elderhostel. I hosted a radio interview program on the arts and culture of New Mexico for two and a half years and have been a freelance writer since 2004. My work can be found in the Special Issues of The Santa Fe New Mexican and the New Mexico Magazine. I have won national awards for both my writing and my radio interviews.

I was thrilled when Dee Ann asked if I’d write the text for this website. I was glad to have a chance to work with her again and to write about one of the places I love most on this earth. This project has brought back many lovely memories. So when Dee Ann asked if I might be interested in being a guest guide, I jumped at the chance to once again share this special place with visitors from all over the world.