Field Notes

History of Springs in a Northern Sky Island

April 11, 2022

On March 31st we heard from Don Swann, at Saguaro National Park, on the history of springs throughout the Rincon and Catalina Mountains. Through his work over the years with…
Read more »

Tracking Saguaros—75 Years of Change in the Cactus Forest

November 11, 2019

The cactus forest at Saguaro National Park is changing. In 1941, concerned park researchers established 6 plots containing saguaro (Carnegiea gigantea) in the Rincon Mountain District to track park populations…
Read more »