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Save the Source Program

Protecting, Restoring and Enjoying the Upper Reaches of the Watershed

image Our Save the Source Program is dedicated to conserving critically important lands in the Upper San Diego River watershed.

This is an amazing and beautiful area which is largely pristine with incredible recreation opportunities. There are also privately owned lands.

This is also one of the most biodiverse places in the entire country. We conduct research to monitor the health of tributaries and wildlife movement as well as on targeted species. Climate change and encroachment are two issues of concern we study. We then use this information to act!

Our Approach 

  • Research
  • Acquisition and Conservation
  • Land Management
  • Restoration

Save the Source Focus Areas:

  • Southern Tributaries
  • Eagle Peak Preserve Conservation Area
  • Peutz Creek Preserve Conservation Area
  • El Cajon Mountain Conservation Area

  • Volunteer Opportunities - current

    • Trail Team - If you enjoy being outdoors, working hard and being part of a team. This is right for you! We are working on opening specific sections of trail at Eagle Peak Ranch as well as the South Rim unit of Eagle Peak Preserve. Tools and supplies are provided, but you are also welcome to bring your own. We will organize carpools or meet you at the Preserve.

    • Camera Monitoring Team - About once per month the team goes out to one of our remote cameras to download photos as well as resupply power, check camera condition and relocate cameras as needed. No experience is needed.

    • Habitat Restoration - activities are focused on Boulder Creek and Temescal Creek. This is great for individuals as well as small and large groups. You will work closely with either a staff member or a very experienced naturalist.

    • Streambed Assessments - In Spring we perform assessments of select tributaries of the River.

    • General Preserve Care - sign making, equipment maintenance and other activities.


    To get involved, email Natalie, our Senior Program Manager, at



    Help us keep the River beautiful for the next generation.
    Volunteer now »