Mount Tam

Mount Tam Public Nights

From April to October, the SFAA offers public viewing in Marin along with public lectures organized by the Friends of Mt Tam (formerly the Mount Tamalpais Interpretive Association).   For more information and directions, please see our Mount Tam Lectures Page.

Mount Tam Members-Only Nights

Join us every month for Members-Only viewing atop Mt Tam.  The State Parks have granted the SFAA a ‘Special Use Permit’  (SUP) allowing us to meet on the Saturday night closest to the new moon for viewing from sundown until 2am.  Check out our calendar for the next Mt Tam Members-Only Night.

Private viewing nights like this are one of the great benefits of SFAA membership, offering peaceful viewing, with no street lights, great range of visibility from the site, (bathrooms!) and the opportunity to network with fellow astronomers.

This venue is truly wonderful because it is almost always ‘above the fog’, making viewing especially perfect when the city lights are blocked by the marine layer.  Many nights we can see the Milky Way in all its glory!

Special Instructions:

Please arrive before dark at the Rock Springs Parking Area because the access road gate will be locked when the park closes at sundown.  If you arrive and find the entrance gate closed, the rangers have asked that you stay by the gate and wait for the ranger to arrive rather than driving around the gate.  (This allows to make sure non-SFAA’ers are not in the park while they are closing it.)  New members beware that the gate gets locked with a code for the club, and in order to depart the star party, you may need to ask around to find the senior members of the club who’ve got the code for gate access for the night.

Bring layers…it can get cold.  Please also remember your red lights and plan to dim your car lights if you arrive in the dark or leave early, and familiarize yourself with our Star Party Etiquette Guidelines.

Special Use Permit (SUP) Required.

Email if your SUP needs to be updated.  Rangers check all cars and you must have your SUP card displayed on your dashboard or you could receive a citation.

Hope to see you there soon!

Rock Spring Parking Area
Mt Tamalpais State Park
West Ridgecrest Blvd @ Pan Toll Road
Stinson Beach, CA 94970