Mark Charlton

IFMGA British Mountain Guide

Qualified at 25 year old as an IFMGA guide, Mark has worked for ISM during his first Alpine season. Having skied from a very early age rock and ice climbed as a young teenager he has made first ascents and descents on all continents of the world. Mark has been guiding for over 30 years working at Glenmore Lodge, Plas y Brenin, before playing a major role working at ISM and throughout the Alps and numerous other parts of the world.

A full time resident of the Chamonix Valley, Mark is currently the president of the British Association of Mountain Guides and has been involved in the training and assessment of guides for the British, Swedish and Polish Mountain Guides Associations.

Very keen climber and skier, Mark is still actively exploring new places with great consideration to environmental concerns.

Testimonials For ISM

My son and I had a really great week, we have gained so many skills, as well as increasing our understanding of what it takes to begin alpine mountaineering safely.The venues used by Adrian were perfect & the Hotel PlanB & mountain hust were both greatSummits and Skills 4000m Summer 2026

Gary
Summits & Skills 4000m (Instructional Course)

Thank you very much for an enjoyable and inspiring week in the Alps, and for your patience and good humour throughout. You have a completely satisfied customer and I hope to join another ISM course sometime in the future.Classic AlpinISM 2025

Michael Firth
Classic AlpinISM (Instructional Course)

Thanks for a fantastic week. It was really one of the best things I have ever done. I learned a lot during the week, not only about climbing technique, but also about attitude.

Lachlan MacGregor

All Reviews