2025 Annual San Pedro Bi-National Beaver Survey #2: Lower San Pedro

Be the Beaver! 

Through the River Run Network, WMG has been working to survey beaver populations along the San Pedro River on both sides of the border, and you can help! Beavers are one of the best local helpers for restoring desert creeks and rivers, and we look forward to hosting this annual survey once again to support healthy beaver populations in our desert watersheds. Come search for signs of beavers all while taking in the beautiful views the San Pedro River has to offer. Be a part of a team in a bi-national effort to further understand beaver activity in Southern Arizona and Sonora, Mexico.

During this event, we will be hiking along and in the San Pedro River in search of beaver activity such as beaver dams, lodges, and chews. This will be a physically demanding activity. We will be walking several miles, including walking in ankle-deep to knee-deep water and tall grass along the riverbank in possibly cold weather, so you will need to be comfortable getting your feet and legs wet and walking in wet sand.

This event will take place in several areas of the San Pedro River near Mammoth and Cascabel. Travel time from Tucson is approximately 1.5 hours.

This event is organized through the River Run Network. If you are not yet a member, we will add you to the Network when you register for this event. RRN membership is free and gives you access to exclusive creek walks, river restoration workshops, river clean-ups, and advocacy opportunities.