Yöstmark Backcountry Tours

02/13/2026

Backcountry Basecamp is back with next weekend! This is an event you do not want to miss. BASECAMP trailer and free demos open to public all weekend long.
• Guided backcountry tour with
• What’s in Your Pack? Workshop with TCISAR
• Companion Rescue Workshop with Yostmark

And a Basecamp Raffle Drawing to support TCISAR. Come on out—it’ll be nothin’ but a good time.

01/24/2026

01/06/2026

Get educated by experienced, professional guides. Increase your safety margin in the backcountry. We still have a few spots remaining in our Avalanche courses this year:

Recreational Level 1: January 17-19

Recreational Level 2: February 2-5

Recreational Level 1: February 14-16

We are a recognized provider by the American Avalanche Association.

12/26/2025

Happy Holidays from the Yostmark team.

12/05/2025

The snow is finally falling and we still have a few spots left in our December Avalanche courses. Avalanche Rescue: December 17th.
Recreational Level 1: December 19-21st. Hone your skills before the season!

12/05/2025

Are you ready? TCISAR is counting down to our big Avalanche Awareness Night. Hear from the experts, connect with your backcountry community, and leave with a good raffle prize in hand.

3 days to pre-register for FREE 🔗 in bio. A pre-registration gets you 1 free raffle ticket. Every $5 donated will be honored with an additional raffle ticket. Don’t miss out!

05/04/2025

Good to the last drop! Thank you to everyone who came out to ski with us this winter.

03/23/2025

Late March powder skiing in the Tetons. Plenty more of this on tap into April.

03/23/2025

Late March powder skiing. Plenty more on tap into April!

02/17/2025

It’s getting deep in the Tetons.

01/28/2025

Last call for our Recreational Level 2 next week. February 3-6 with Brian Johnson and Thomas Ney. A few spaces still available. Increase your knowledge and confidence in the backcountry through education with experienced, trained educators.