One World Trekking Guides


Andy CrisconiAndy Crisconi
Owner and guide
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Charles EngelbertCharles EngeLbert
Trek, bike guide; photographer.
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Dennis WebbDennis Webb
Trekking guide, journalist.
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Manasseh FranklinManasseh Franklin
Trekking guide, travel writer.
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terray-sylvester-new-profile-picture-smallTerray Sylvester
Trekking, climbing guide; journalist.
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Mark Van AlstineMark Van Alstine
Trip consultant, trekking guide.
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Jake the DogJake the Dog
Office Companion.
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Wyatt the DogWyatt the Dog
Office Assistant.
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Contact & Info Center

(970) 945-2601

(Verizon mobile)

  • PO Box 3084
  • Aspen, Colorado 81612

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Manasseh and Andy celebrating on top of Kala Pattar at 18,200 feet near Mount Everest

We are a collection of friends wishing to share our passion for adventure travel with you. For almost 30 years, the members of One World Trekking have been creating, organizing and guiding adventure travel journeys throughout the world's great mountain regions. We see ourselves as a cooperative of experience and talent that few companies possess.

Andy Crisconi is the founding director of One World Trekking, based in Aspen, Colorado. Having spent the past 29 years accompanying groups into the nooks and crannies of the Himalayas, Andy will be your main contact. So please feel free to get in touch with Andy directly regarding any of our incredible trekking trips. His direct email is andy.crisconi@oneworldtrekking.com

We are very happy to welcome Manasseh Franklin as the newest member of the One World Trekking Team. Manasseh brings an incredible pool of talent, professionalism and adventuring spirit to One World Trekking. Manasseh will not only be accompanying you as a trip leader, but will also be working with our marketing and sales teams. Looking for a woman's perspective on trekking in the Himalayas? Just get in touch with Manasseh for advice. We are very happy to welcome back past company director Mark Van Alstine. Mark will be acting as a trip consultant and helping us create new and exciting trip itineraries worldwide!

At One World Trekking our goal is not to wow you with lots of bells and whistles, but to provide you with sound advice and a quality trip at a competitive price. One World Trekking was founded on a grassroots level and we strive to keep prices down (without sacrificing quality) by not publishing a fancy color brochure. This website is our brochure and we will communicate with you as much as needed, by email and telephone, to make sure you get on your trekking adventure of a lifetime!