- Over 750 native plant species
- Over 250 native animal species
- Over 100 rare or sensitive species
- 200 miles of trails
- 5M visitors annually
- 5 reservoirs
- 4 land managers
- 1 mountain… that needs your help.
Through community passion and great vision, Mt. Tam has been protected for more than a century. Now, Mt. Tam needs you. Be a part of One Tam, the community campaign of the Tamalpais Lands Collaborative, and help ensure a healthy future for the mountain we all cherish.
Look What's New!
Upcoming programs, events, research, and more
Health of Mt. Tam
Measuring the Health of a Mountain
Hands On Tam!
Join us on 2/2 for a fun winter workday!
Getting Batty!
New Bat Monitoring Project Underway
Biodiversity
Learn about Tam's plants and animals
Join One Tam
Individual or business memberships
One Mountain, One Team
Creation of the Tamalpais Lands Collaborative (TLC) signals a new era of stewardship and support for the mountain.Get the latest information about the TLC, including agreements, reports, financial updates, and agency meetings.
Community Outreach
To help build awareness about the formation and launch of the TLC, the partner organizations have attended community events and have met with representatives from a number of stakeholder groups.
