Seniors

Do you ever wish we could look back in time? We can, by studying the cosmic microwave background (CMB), which reveals the fiery early universe when it was only 0.003% of its present age. This talk will show how studying the CMB allows us to learn about the origin, composition, and ultimate fate of the universe.

Enjoy a Saturday morning hike, guided by Friends of Mt. Tam volunteers.

This restored Cold War anti-aircraft missile site has intriguing stories to tell.

A total solar eclipse is one of nature‰ЫЄs most magnificent spectacles. On August 21, 2017, for the first time in 38 years, the very narrow path of a total solar eclipse falls across the continental US. Come learn about total solar eclipses and how to view this one!

Enjoy a Saturday morning hike, guided by Friends of Mt. Tam volunteers.

Preservation of this unique landscape comes with its own unique challenges: come learn more about cultural resource management, stewardship, and the future of the SF-88 Nike Missile Site.

Besides Earth, several planetary bodies in our solar systems are recognized as having the potential to host primitive forms of life. This talk will describe why and how NASA plans to search for life on Mars and the icy moons of Jupiter and Saturn.

Join park staff in a clockwise circumambulation fo Mount Tamalpais following the steps of the ritual walk performed since 1971 by poets Gary Snyder and Allen Ginsberg. This hike will cover 15 miles of trails, stop at 10 inspirational points, and provoke new thoughts.

Volunteers will focus on removing Douglas-fir seedlings from the oak woodlands along the Taylor Trail.

Explore Mt. Tam trails with others who love the mountain.