Dave Mayville With countless 5.12 routes to his credit and an impressive string of first ascents Dave Mayville is one of Southern California's strongest and most highly respected rock climbers.

Known for his boundless energy and enthusiasm, Dave has the ability to teach and influence his clients like no other guide. When you climb with Dave those obstacles that used to hold you back will miraculously disappear and you will climb beyond your wildest expectations. With over 2000 days of guiding he knows the most unique climbs in the park. It doesn't matter if you are a beginning climbing or someone who wants to hit the hard classics, with Dave as your guide you are going to have a truly unique climbing experience.

His personality and enthusiasm leads to fun at the crags, and his reputation for long days with clients keep them coming back for more. Go climbing with Dave and get stuff done. He has the confidence, focus, experience and muscle to get up just about anything. A truly amazing, seemingly invulnerable climber, Dave is a major influence in the history of Joshua Tree climbing and in the lives of many.
Here are some of Dave's hard-hitting classics. Some like it hot (5.12)1990, Scorpion (5.13), Chameleon (5.12a) first lead, Middle Age Savage (5.12b) 1992, The Edge and many more. Climb with Dave Mayville and unleash your inner power!

Susan Cram

Susan has been a climber for 18 years starting her climbing career in Eldorado Canyon in Colorado. Since then she has climbed all over the world including; Africa, Asia, Nepal, Europe, Mexico and Canada. In the United States she has honed her skills in the Tetons, Wind River Range, Pacific Northwest, Yosemite Valley, and Tuolumne, the Sierras, Joshua Tree, Idyllwild, the Shawangunks and many other climbing destinations. She is not only a proficient rock guide but a mountaineer and ice climber.

Susan has worked for Yosemite Search and Rescue and the American Alpine Club. She comes to climbing full time after having a career in corporate America where she acted as Director of Technology for GMAC and most recently Vice President of Consulting for TIE Commerce, an Amsterdam based software company. After a leave of absence to build a school in Nepal she came to Joshua Tree for her annual visit that she has done since 1987 and decided that was where she was going to stay. She began guiding for Uprising Adventure Guides, Inc and bought the company in the spring of 2004.

Susan is an AMGA Certified Top Rope Site Manager and has spent the majority of her life teaching people how to climb. Come spend a day with a corporate gone climber and hear how you can break free from the rat race as well!

Darryl Pion

Darryl started climbing as a teenager in the Tahoe area and Yosemite National Park and has been a professional guide in varying activities for seven years. His guiding experience in Rock Climbing, Cycling, Sea Kayaking and Hiking give him a well rounded base of knowledge and experience.

Darryl is a guide who has completed the AMGA Rock Instructor Course and moved to Joshua Tree five years ago after falling in love with it's beauty. His knowledge and appreciation for rock climbing in this area is reflected through our client satisfaction.

Darryl's goals for a climbing day are always safety, client comfort and fun!

Jeff Cooper

Jeff has been actively rock climbing since 1972.

Jeff was the Director of Wilderness Outings for over 13 years, when it was organized under Adventure 16, from 1989 to 2002. During that time, he grew the program to serve well over 15,000 clients, introducing them to the outdoors and the very fine cadre of instructors he had cultivated for over a decade.

Before that, Jeff worked for various other experiential education and outdoor programs, including a 12 year tenure with Outward Bound. He is an AMGA Certified Top Rope Site Manager and still enjoys teaching and guiding. With many big wall climbs, mountaineering ascents, sea kayak expeditions and cross-country ski traverses to his credit, his current interests find him surf kayaking, mountain biking, or canyoneering.

Theresa Walsh

Among the many roles Theresa has filled as a professional outdoor educator, her contributions to guiding and technical instruction are outstanding. Since 1989 Theresa has taught many adventuring enthusiasts good judgment skills, the art of risk management and having fun. Her experience has come from working with youth, adults, and womens groups at the National Outdoor Leadership School (NOLS), Pacific Crest Outward Bound School (PCOBS) and Yosemite Mountaineering School. Theresa has accumulated over 75 weeks of wilderness expedition experience.

Markus has been a climber since 1984 and is an AMGA Certified Level I Rock Guide. He began instructing climbing professionally in the outdoor education industry at Cal Poly State University in 1988.

In 1990 he became an instructor for the National Outdoor Leadership School (NOLS) and for 10 years taught 30 day climbing expeditions in remote wilderness settings. Markus has also guided at the Yosemite Mountaineering School and the Outward Bound School in the North Cascades. Personally Markus has climbed at more than 63 major climbing areas in the United States, Canada, Mexico and South America. Markus is known in the industry for his patient, safe and fun teaching style as well as his climbing ability and experienced as an outdoor educator.