Staff - Ascendigo

Full-time Staff

Ron Rash -Adventures Director

Ron is the past CEO of Aspen Alpine Guides and EnvironClean, Inc. He is a partner in Aspen International Travel Company. As the past CEO of Aspen Alpine Guides, Ron was instrumental in starting the rock climbing program with the Ascendigo. RoRonck climbing has become one of the signature sports programs at the Ascendigo. Ron has been a mountain guide for over 28 years, guiding trips in the American West, Canada, and the Indian Himalaya. In the Aspen, Colorado area Ron has over 150 ascents of the Bells, Capitol, and Pyramid Peak, some of the more technical peaks in Colorado. He has been a full member of Mountain Rescue Aspen for 15 years and served 2 years as a board member and the Training Officer, a Single Pitch Instructor for the American Mountain Guides Association, a Senior Field Instructor for the National Outdoor Leadership School, and a ski pro for the Aspen Ski Company. Ron has extensive medical training as a Wilderness First Responder and is certified as an Outdoor Emergency Care Technician. He has been teaching Level 1and 2 avalanche courses for 25 years. He loves to introduce people to the mountains and when not guiding he can still be found in the mountains showing his daughter, Megan, this incredible environment. Ron has helped to put together the driving management plan for Ascendigo and has been involved in the training of new skill’s trainers in leadership, communication, and creating a positive work environment.


Maureen Muller – Business Manager


Alta Otto-Marketing & Events Director

Alta Otto joins Ascendigo’s team with prior involvement with Extreme Sports Camp as a parent and Light It Up Blue committee member. Before joining Ascendigo, Alta spent 5 years doing marketing, operations leadership roles/event coordinating for several event companies in the Roaring Fork Valley and Vail Valley. She has experience and is passionate about the digital marketing, social media platforms and planning events.

Alta grew up in the RFV graduating from Aspen High School. Though, she’s traveled many different places, she never been able to leave the rocky mountains and the RFV. Alta lives in Glenwood with her two kids, one who is high functioning autistic, a husband and yellow lab named June. They enjoy spending their free time road tripping, playing in the rivers, and camping with family and friends.

Matt McCabe-  Assistant Adventures Director

Mathew was born and raised in Central Illinois.  He received his Bachelor’s Degree from Western Illinois University with a  Major in Recreation, Parks, and Tourism Administration; and Minors in Business , Outdoor Leadership, and Therapeutic Recreation.  Mathew moved to the Roaring Fork Valley to raft guide for Aspen Whitewater Rafting.  Then he spent the winter season doing an Internship for Challenge Aspen.  It was during this internship that he was recruited by Extreme Sports Camp to be a ski buddy. This experience allowed Mathew to become a PSIA certified Ski Instructor. Since then he has worn many hats for ESC/ Ascendigo and is currently the year-round Adventures Coordinator.  Mathew is passionate about Kayaking, Rafting, Skiing, Alpinism, Trail Running, and many other mountain sports.  Above all else , Mathew is happiest when sharing these passions with those on the Autism Spectrum.

Adult Enrichment Staff

Autism Expertise

DianeOsakiDiane Osaki, OT – Consultant to Ascendigo

Deeply involved in the shaping and development of our programs, Diane has played an integral role in our success.  Year to year, she has helped to continually improve our program quality which makes the experience and benefits for the kids who attend the Ascendigo the best they can be.  Diane is personally involved in our training each season and provides valuable on-site direction and guidance for our entire staff.  She attends periodically during the summer and winter programs to provide guidance and training throughout our programs.

Diane Osaki is the Early Start Denver Model Director of Firefly Autism. She was the founder and executive director of the center – originally known as the Aspen Center for Autism – in 2003, and served on the board from 2007 to 2010. She is a pediatric occupational therapist and has been working with people with developmental disabilities for nearly 20 years, specializing in treatment for children with autism and their families. Prior to opening what was then the Aspen Center for Autism, Diane was with JFK Partners at the University of Colorado Health Services. Diane is a member of the Association for Behavior Analysis, the Autism Society of America, and the American Occupational Therapy Association. She was also on the Board of Directors for the Colorado Chapter of the Autism Society of America. Diane provides educational and behavior consultation to families and schools in Colorado and around the world. Her intervention focuses on building positive relationships and the science of instruction to improve learning in all areas of development.



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