AAG guides retain several of the following certifications, are active members in professional organizations, and maintain active training schedules.

Guiding Principles: Aspen Alpine Guides

  • We at Aspen Alpine Guides strive to provide a model for an individual-focused guide service that continues to maintain safety, leadership and passion for the outdoors.
  • Our commitment to providing outstanding guides ensures that our guides are able to work towards their goals and create memorable experiences.
  • We are committed to being a resource to the community by sharing our passion for teaching and education.
  • We foster a mutual respect and appreciation for environmental stewardship and healthy lifestyles.
  • We continue to commit to our guests’ goals by guiding with integrity, authenticity and passion. Above all, we value the relationships we have built with our guests and each other.

Note: The above document was created in the Spring of 2013 in a collaborative process by the guides from Aspen Alpine Guides.

Medical Certifications

  • Wilderness First Responder: WFR
  • Emergency Medical Tech: EMT
  • Wilderness Emergency Medical Tech: WEMT
  • Outdoor Emergency Care: OEC
  • Cardiopulmonary Resuscitation: CPR

Certifications and Memberships

  • American Avalanche Association: AAA
  • American Institute for Avalanche Research and Education: AIARE
  • American Mountain Guide Association: AMGA
  • International Federation of Mountain Guides Association: IFMGA
  • Leave No Trace: LNT
  • Mountain Rescue Aspen: MRA
  • National Outdoor Leadership School: NOLS
  • Professional Ski Instructors of America: PSIA

Meet the Guides

Programming / Operations / Guide

Stephen Szoradi

Stephen began guiding with Aspen Alpine Guides in 2008 after moving from Switzerland where he spent the previous seven years training and working. In the summer, Stephen guides the regional 14,000 ft peaks, day hikes, rock climbs, as well as altitude training. In the winter, he is a backcountry ski guide, snowshoe guide and ski instructor for the Aspen Skiing Company.

Stephen is a Member of Mountain Rescue Aspen (MRA), an Individual Member and Single Pitch Instructor with the American Mountain Guide Association (AMGA) and an Alpine Level I Instructor with the Professional Ski Instructors of America (PSIA). He holds certifications as an Emergency Med Tech (EMT) and a Wilderness First Responder (WFR) and has completed the AIARE Level II course and is a Level I Instructor with the American Institute of Avalanche Research and Education (AIARE). Additionally he serves as a boardmember of the non-profit WeCycle, an Aspen bike share program, and more recently is a trustee on the Colorado Mountain Club State Advisory Board. 

Tim Shortell

Tim has been wandering and guiding in the mountains of Aspen for almost 25 years. Originally from New England, he made his way west in search of a little more "elbow room" and never left. Preferring to stay in the backcountry Tim guides many of Aspen Alpine Guides' wilderness hiking, backpacking, and hut to hut trips. He also is a ski instructor at Aspen Highlands, a senior field instructor for the National Outdoor Leadership School, and the outdoor program coordinator for Aspen Youth Experience, a non-profit organization working with at-risk youth from around the country. When not guiding or teaching Tim can usually be found fishing the streams near his cabin in the West Elk Mountains.

Erin Harris

Erin has joined the team as our Leave the Boys Behind program coordinator. Erin made her way from Michigan to Aspen over 10 years ago after graduating from Michigan State University with a dregree in environmental geoscience. She grew up skiing, biking and hiking and loves to travel the world looking for adventure. From the mountains of Nepal and Ecuador to the beaches of Fiji and Mexico, Erin always finds her way back home to paradise in the mountains of Aspen. 

Year-round Guides

Tony Greene

Tony has been skiing and climbing in Aspen since 1988. He began teaching skiing immediately upon moving to the area and his love of playing and teaching in the mountains has grown ever since. Tony is a Professional Ski Instructors of America (PSIA) Level 3 in the Alpine discipline. He has also completed his AIARE Level I avalanche training. He loves to share this amazing place with new people.

Josh Gross

Josh is an east coast transplant coming from the Gunks of New York. He has been guiding and teaching outdoor education since 1996, and has sucessfully completed the AMGA advanced rock guides course. He also holds a BA in Outdoor Leadership from Prescott College. Josh has complete several successful climbing expeditions in areas such as Cirque of Unclimbables, Yukon, and first free ascents in Patagonia, Argentina, and Mexico, Alaska. He has established over 150 first ascents of rock climbs to his credit in the desert southwest. He is currently working as a climbing ranger in Rocky Mountain National Park.

Joda Hankins

Joda cut his teeth in the outdoor world while learning to climb the steep walls of The Gunks in NY. After completing his B.A. in English and Leadership, he spent three seasons climbing and teaching mountain safety in the Ladakh Range of Northern India. Joda has guided in India, Japan, Alaska, Washington, and throughout the Western U.S. He is a Wilderness First Responder, Leave No Trace Educator, holds an AIARE level II certification, and is an individual member of the AMGA working towards his Alpine certification. 

Curt Hepler

Curt's rock climbing career began in the Midwest almost 20 years ago, where he grew up climbing the Quartzite rock cliffs of Devils Lake, Wisconsin. His passion for the mountains led him to Colorado where he enjoys sharing his knowledge of climbing and the outdoors with others.  He is a current AMGA member with a SPI certification.

Peter Mangum

Peter Magnum spent much of his youth hiking, climbing and backpacking among the mountains and forests of the east coast. He began his ski patrolling career on the 'loud powder' ski slopes of the mid-Atlantic before migrating to the 'soft powder' of the Rockies. In summer he guides mountaineering, rock climbing, hut trips, hiking and mountain biking for AAG. In winter, he guides 10th Mountain Division Hut trips, backcountry skiing and snowshoe trips. He is also a member of Mountain Rescue Aspen.

Nathan Rowland

Nathan grew up in Washington State where the volcanoes of the Cascade Range were his playground and mentor.  Settling in Colorado in 2000, Nathan has adopted the Elk Mountains as his new home and office.  He has had many successful expeditions spanning the globe in such locations as the Tien Shan of Kyrgyzstan, Patagonia, the Andes, the Aleutian Islands, the Tordrillos, the Chugach, and the Southern Alps of New Zealand.  Nathan is a member of Mountain Rescue Aspen (MRA), an Emergency Medical Technician (EMT), Remote Emergency Medical Technician (REMT), Medical Care Person in Charge (MCPIC), and has completed the AIARE Level II avalanche course.

Jordan White

Jordan grew up playing in the mountains right here in Colorado. He got his first start climbing mountains at age five when he summited his first fourtneener. Since then he has put his time in learning the tricks and trades of the outdoor world. In summer, Jordan spends his as much time as possible in the high alpine with either his rock shoes or hiking boots on. In winter, it is hard to find a day when his feet aren't crammed into ski boots for some adventure or another.  In 2009 Jordan became the youngest and the 5th person to ski from the summit of all 54 of Colorado's 14,000 foot peaks. Jordan also guides for Ski Arpa, catskiing down in Chile and is a member of Mountain Rescue Aspen.

John Young

John was born and raised in Cooperstown, NY where he enjoyed living a Tom Sawyer-like childhood. But when John discovered the granite spires of Wyoming's Tetons, Utah's red rock Desert Towers, and Colorado's high ridge-lined Rockies he moved his family West. He came to Colorado specifically to pursue a career in guiding and teaching rock climbing and mountaineering. John also guides snowshoe hikes and volunteers for Mountain Rescue Aspen.


Seasonal Guides

Deb Gravelle
Mary Harlan
Brian Marsh- AMGA SPI
Elisabeth Nemiec
Buzz Patton
Richard Rosenfield
Lynn Sanson - AMGA SPI
Mike Schneiter - AMGA Rock Guide
Sean Shean
Riley Soderquist
Anton Sponar
Mary Frances Szoradi
Pete Van Deventer
Katie Van Deventer
Gavi Weiner - AMGA SPI
Fabrizio Zangrilli

Special Resources

Mark Falender - IFMGA/UIAGM Rock Climbing, Alpine, Ski Mountaineering Guide
John MacKinnon - AMGA Rock Climbing, Ski Mountaineering Guide
Eric Whelwell - IFMGA/UIAGM Rock Climbing, Alpine, Ski Mountaineering Guide

Avalanche Education

Mark Falender - AIARE Level I & II Course Leader, AAA Certified Instructor
Deb Kelly - AIARE Level I Course Leader & Level II Instructor
John MacKinnon - AIARE Level I & II Course Leader
Scott Messina - AIARE Level I & II Course Leader
Stephen Szoradi - AIARE Level I Instructor
Katie Van Deventer - AIARE Level I Course Instructor 
Pete Van Deventer - AIARE Level I Course Instructor