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

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!


We are incredibly proud of our Trip Leaders. Whether you join a group trip led by one of our Western Trekking Professionals or accompanied on a private trek by one of our experienced Sherpa Trekking Guides, we can assure you a level of skill, knowledge and enthusiasm possessed by few other adventure travel companies. A great guide makes for a great trip and this is an integral part of a One World Trekking experience. Climbers, trekkers, naturalists, journalists and photographers - their skills are extraordinary and varied. Our guides are there to share their passion for unforgettable places and people with you. This enthusiasm and dedication is what transforms a trip into an experience of a lifetime!


Charles Engelbert getting high in the Khumbu region near Mount Everest

Since 1988 our roots have been in the Himalayan kingdoms of South Asia. These are the countries we know best and we have an incredible support system in each of the areas we travel. One World Trekking is working in conjunction with our overseas-based agents, who are helping us organize, operate and promote the Himalayan trekking adventures trips listed on our website. Without these locally-based friends and agents, the amazing, life-changing trips we offer would not be possible.

Our trekking trips are fully-inclusive (except for some meals and personal expenses) upon arrival in the destination city. During your trip, you will be escorted by our local representatives while in the main arrival cities and accompanied on trek by one of our experienced Western Trip Leaders and/or one or more of our experienced, professionally trained and English-speaking Sherpa Trekking Guides and full trekking support team which will include a cook, various assistants and porters and/or pack animals. These are not backpacking trips where you carry large and heavy packs. We arrange professionally guided and fully supported trips. You carry only a daypack. Even with our competitive pricing, we are offering you the same quality of trip and level of service offered by companies charging twice the amount.

Our program of Himalayan treks represents the 'Tried and True Classic Walking Journeys' and the 'Epic Trekking Adventures' of the world's greatest mountain range. We are able to arrange almost all of our trips to start on any day of the week during the best weather months for groups of 1 to 12 people. Our goal is to provide you a quality trek at a competitive price on dates that work for your schedule. In doing so, your trek is always guaranteed to go!


CUSTOM DESIGNED ITINERARIES AND PRIVATE DATES: In addition to what you see on our website, we are able to arrange just about any Himalayan trekking itinerary on a private and custom basis. In addition to our published dates, we are able to arrange a private departure date on an existing trek for your group (1 to 12 people) OR create a custom itinerary for your group. Please feel free to call or email us with questions or for further information.


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