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We are an international climbing and skiing guide service owned and operated by UIAGM / IFMGA Certified Mountain Guides Kathy Cosley & Mark Houston. We specialize in small-group and custom climbing and skiing trips and expeditions to the great alpine destinations of the world. Our programs include mountaineering, rock and ice climbing, expeditions and ski mountaineering.

Thanks for visiting!

Kathy & Mark


Upcoming Trips

Walker's Haute Route

This route, between Chamonix and Zermatt, stays almost entirely on trails, avoiding the technical glaciers and difficult travel of our Haute Route Glacier Trek, below. Only one night is spent in a high mountain hut, with the balance in comfortable hotels and g�tes. We have a dedicated van to bring our baggage to each night's stop (except the single night in the hut) and to shuttle us to and from trail heads.

August 21 - 29, 2019
Haute Route
Glacier Trek

This is a challenging high altitude trek linking the Chamonix Valley and Zermatt. For much of this route we are on glaciers or off trail, on climbers paths and routes. We'll stay in mountain huts, rise early and enjoy long days in high alpine terrain. This 7-day route is distinctly more difficult than the "walker's" (non-glacier) route, but offers the rewards of a greater challenge.

July 15 - 21, 2018

Alps Summer

We spend every summer guiding in our backyard, the Alps. Let us know if you think you might like to join us.

June - September, 2018

Ski Touring
Valle Maira

Pensione-based ski touring. "Old World" Italy, fantastic food, powder snow in a less-visited corner of the Alps.

February 4 - 8, 2019

Ski Tour

The Silvretta group straddles the border between Italy and Austria. Our 6-day tour starts on the Austrian side and visits 3 huts, the Heidelberger, the Jamtal and the Wiesbadener. This is a prefect choice as an introduction to ski touring in the Alps, with comfortable huts (showers!) and superb touring terrain.

February 17 - 22, 2019
St. Moritz to Davos
Albula Traverse

Just north of St-Moritz and the Julier Pass, and southwest of the Silvretta Group is a ski touring paradise called the Albula. We start this trip with a one day descent from the Diavolezza before continuing on to spend 6 days of touring, connecting St. Moritz to Davos. North-facing, the descents are amazingly good.

March 2 - 8, 2019


Sea, snow, mountains and sky in an amazingly beautiful part of the world. We stay in the Lofoten Ski Lodge. Each day we take a short drive to a new tour. First class comfort, great touring and fantastic scenery produce an unforgettable week.

March 12 - 17, 2019
March 19 - 24, 2019


This tour is one of our favorites. Great huts, fantastic ski descents, and big, glaciated peaks. We have 7 days of skiing starting and ending in Sulden, Italy. The daily routine: get up, enjoy a fine breakfast, climb another big peak, have a great ski down, shower, relax in the bar, dinner, to bed, and repeat. The perfect tour for skilled and adventurous skiers who enjoy their fun.

March 29 - April 4, 2019

Tour du Ciel

Probably the most visually spectacular ski tour in Switzerland. This technically difficult adventure starts in Zermatt and ends in StNiklaus. This is a diffidult tour, suitable only for highly skilled skiers with considerable previous mountaineering experience.

April 22 - 27, 2019
Check our availability page

last site update: February 28, 2019 - see history

Awards from the
American Mountain
Guides Association

more info

"Outstanding Guide Award" Kathy & Mark 2005

"Lifetime Achievement Award" Kathy Cosley 2013

"Lifetime Achievement Award" Mark Houston 2014

Read our book!

Kathy Cosley & Mark Houston
UIAGM Internationally Licensed Mountain Guides

AMGA Certified � SNGM members
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