Visit and Explore

The Santa Cruz River is a unique resource in our community. Learn how to connect with this riparian habitat.

7:30 – 9:30 a.m., Nov. 4, 2025

Birding at El Rio Preserve (November)

9 – 11 a.m., Nov. 8, 2025

Santa Cruz Wildlife Ramp Highway Cleanup

3:30 – 5:30 p.m., Nov. 8, 2025

Reconciliation Ecology Workshop: Annuals | Taller de Ecologia: Plantas Anuales

person holding a dragonfly

Dragonfly Bioblitz

Help us count all the dragonflies!

Dragonfly Bioblitz

Group of people standing on edge of Santa Cruz River

Santa Cruz River Dispatches

Connect with river stories from this month.

River Dispatches

Student project infographic of a Gila topminnow

Santa Cruz River Lessons

Discover classroom activities inspired by the Santa Cruz River.

Lessons and Activities

Santa Cruz River in Marana AZ

Group of people in Santa Cruz River

People standing in river holding measuring equipment

Two people measuring length of a turtle

Sonoran mud turtle in the Santa Cruz River

View of people in Santa Cruz River Channel

Researchers gathering plant data in transect square

People looking in container filled with water and aquatic life

Coyotes walking along a river in Tucson

Image of 2 Sonoran Desert toads

Santa Cruz River in Marana

People standing in Santa Cruz river

People standing in a river looking at rocks

Person holding dragonfly in their fingers

Image of Vermilion Flycatcher, a bird with a red head and chest, with gray wings