One Tam

Join the National Park Service and One Tam for their fourth annual City Nature Challenge, an international community science competition to see which urban area can document the most nature!

Join the Environmental Forum of Marin and guest speakers to learn more about the cutting edge of carbon sequestration and the ’new carbon economy.’

During this event, we will teach you about the Wildlife Picture Index (WPI) and you will participate in the cataloging and identification of wildlife.

During this event, we will teach you about the Wildlife Picture Index (WPI) and you will participate in the cataloging and identification of wildlife.

Spend a morning walking and talking with experts on the evolution and ecology of marshes in Richardson Bay, and see rare marsh flora in bloom.

Use all your senses to experience Bothin Marsh, and see this special place right in our backyard with new eyes.

Wildlife Talks and Happy Hour

Please join MMWD, Marin County Parks, and One Tam for our annual Bald Hill Broom Bust!

Hear what we’ve learned from a new inventory of Mt. Tam’s seeps and springs, part of an ongoing effort to understand the health of the mountain. 

Join California State Parks and One Tam for a morning of habitat restoration!