Mt. Tam

To unite resources and expertise, coordinate plans, and care for the mountain in a more holistic manner, the four public agencies responsible for Mt. Tam (California State Parks, Marin County Parks, Marin Municipal Water District, and the National Park Service) have teamed with the nonprofit Golden Gate National Parks Conservancy to form the Tamalpais Lands Collaborative.

Please use the links below to learn more about the TLC’s vision, structure, programs, and projects. See how each agency partner is engaged with the work of the TLC, check out what’s been planned for the year ahead, or review our annual reports and financial updates to learn about what has already been accomplished.

TLC Background Information:

The documents below provide important background information on the formation of the TLC, its structure, how programs and projects are selected, and the agreements among its partners.

Programs & Projects


Our Work:

Learn more about what the TLC has accomplished, and what’s in store for the year ahead.


On October 4, 2015 the TLC Executive Team hosted Tam Talk, an interactive and engaging dialogue about what the collaborative had undertaken in its first year, and plans for the year ahead


On November 12, 2016 the TLC Executive Team hosted our second Tam Talk, and presented the proposed work plan for 2017:


  • The 2017 Tamalpais Lands Collaborative Annual Report highlights accomplishments from October 1, 2016 to September 30, 2017 in the areas of projects and programs, awareness and engagement, partnership and collective impact, and philanthropy and investment
On October 26, 2017 the TLC Executive Team hosted our third Tam Talk, and present the proposed work plan for 2018:


Financial Updates

Case Studies:

With few well-documented models to inform this kind of partnership, the TLC partners are forging new ground as they determine how best to work together for the common good of Mt. Tam, and how to measure the benefits of collaboration.

Researchers have been studying the TLC to understand the strengths and challenges of this new partnership model, and to assess the TLC’s effectiveness and reach. Read more about what they found in the reports below.

Individual Agency Business Related to the TLC:

The TLC is not a new agency or governing body. All projects and programs proposed for TLC support are subject to review (including environmental compliance), approval, and support through the existing processes of the partner agencies.

The links below will take you to the websites where each agency posts information about meetings, public comment opportunities, and upcoming projects. Where possible, there are also links to past meetings where TLC business was conducted.