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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

Valle Maira

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


February 8 - 12, 2016
from 1900 € • pricing info

This quiet corner of the Alps is known for powder snow and sunshine. Think "Colorado" with huts that have showers and a full bar. In our Queyras tour we spend 6 days skiing, staying in both hotels, gîtes as well as three nights in mountain refuges.

February 14 - 19, 2016
from 1700 € • pricing info

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 23 - 28, 2016
from 1950 € • pricing info
Saint Moritz
to Davos
Albula Traverse

Just north of Saint 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 an additional 6 days of touring, connecting Saint Moritz to Davos. Mostly north-facing, the descents are amazingly good.

March 1 - 7, 2016
from 2550 € • pricing info

Haute Route

The large "ice cap" of glaciers of the Parc National de la Vanoise offer great touring terrain. Better still, the route travels in a south to north direction, giving light snow and great skiing on the many big descents. This 5-day traverse can be lengthened by spending several days exploring the immense downhill ski complex of the Trois Valleés.

March 12 - 16, 2016
from 1550 € • pricing info

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 21 - 27, 2016
from 2050 € • pricing info

Haute Route
Ski Tour

This is the classic Chamonix to Zermatt ski journey. Our 8-day program starts with a day of off-piste in Chamonix (usually the Vallée Blanche) and cruises into Zermatt a week later. We'll stay at the Trient, Mont Fort, Prafleuri, Dix and Vignettes huts as we wind our way through the highest and most impressive section of the Alps.

March 30 - April 6, 2016
from 2660 € • pricing info
Gran Paradiso
Tour and Ascent

On this 6-day tour we ski from Valgrisenche to Valsavarenche, finishing with an ascent of the Gran Paradiso. At 4061 meters, this is the highest peak entirely within Italy. We'll visit 4 huts as we traverse across the Parco Nazionale Gran Paradiso.

April 10 - 15, 2016
fom 1650 € • pricing info
Haute Route

This is the hardest tour we do on a regular basis. The "Classic" Chamonix to Zermatt, traversing the Plateau du Couloir, with an added ascent, and (of course) descent of Mont Vélan. 8 days of skiing, with big days every day. Some serious vertical, up and down. For expert skiers, happy to push themselves.

April 18 - 25, 2016
from 3100 € • pricing info
Ski Tour

The Berner Oberland is a vast complex of giant valley glaciers and big peaks. This country looks more like Alaska, with immense glaciers, big icefalls and long descents. Unlike Alaska, however, there are comfortable huts and easy access from the Jungfraujoch train. 6 days of skiing, staying in a new hut every night (except the two we spend in the very nice Finsteraarhorn hut).

April 28 - May 3, 2016
fom 2120 € • pricing info
Glacier Trek

This is the summer trek through the heart of the Berner Oberland. A 7-day hut-to-hut expedition though the vast complex of the largest glaciers in in the Alps. Similar in difficulty to the summer Chamonix to Zermatt Glacier Trek below, this adventure spends part or all of every day on large valley glaciers and among giant peaks more reminiscent of Alaska than the Alps.

July 9 - 15, 2016
from 2100 USD • pricing info
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 17 - 23, 2016
from 1900 USD • pricing info

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, 2016

Rock Climbing
Les Calanques

Les Calanques are the French Riviera's answer to the fiords of Norway–deep canyons of limestone dropping down in the gentle Mediterranean. Climbers have been enjoying the rock, the beaches and the water for over 100 years. In October and November, the weather is usually wonderfully warm, the sun is out and Les Calanques becomes a fantastic place to store up memories and sunshine before a long, cold winter.

October and November
Check our availability page

last site update: December 31, 2015 - 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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