Wildlife Picture Index Project

The One Tam partner agencies are using motion-activated cameras to study wildlife on public lands around Mt. Tam. Also known as the Marin Wildlife Picture Index Project, this community science project depends on volunteers to assist at every step along the way.  

To Get Involved

Check out the One Tam calendar to view volunteer opportunities, or contact Lisette Arellano at larellano@onetam.org.

View the Marin County Parks webpage on this project.

Learn more by viewing presentations on preliminary findings from this work, presented at the 2017 Mt. Tam Wildlife Symposium.

A Glimpse into the Secret Lives of Mt. Tam

In the Lab

For those who enjoy viewing wildlife photos, this is your chance to spot a mountain lion, baby coyote, or family of foxes! Our cameras collect hundreds of thousands of images, and each one needs to be checked by human eyes. Twice a month, volunteers can come learn to identify the mammals captured on camera and enter the images into our database. In 2015, our volunteers cataloged over 200,000 photos!

View some of the wildlife images captured so far in the slideshow below:

Marin Wildlife Picture Index Photos

Download Wildlife Picture Index Infographs to Learn More:

Gary Giacomini Open Space Preserve

Marin Municipal Water District

Point Reyes National Seashore

Roys Redwood & French Ranch

Samuel P. Taylor State Park

White Hill & Cascade Canyon

Our volunteers get a first-hand glimpse into secret animal life on Mt. Tam
Marin County Parks

Our volunteers get a first-hand glimpse into secret animal life on Mt. Tam.

Volunteers work alongside staff to catalog thousands of photos.
Volunteers learn how to service wildlife cameras.

Coyote carrying fawn, part one.


Coyote taking a break.


Coyote carrying fawn, part two.

Marin County Parks


In the Field

If you would prefer to get out in the field, we need help servicing over 100 motion-activated cameras every four to six weeks.  After completing a half-day training, volunteers accompany staff to some of the most remote locations in Marin, where we make sure the cameras are working, and replace batteries and memory cards. In addition to the scenery, this is a great chance to learn about using GPS, cross-country navigation, field safety, and the use of digital cameras and other technology.

See our slideshow of wildlife in the parks

Explore Camera Data


Planning Updates & Related Resources

Wildlife Camera Project FAQs [184kb pdf ]