Friends of Union Slough
Join the Friends of Union Slough National Wildlife Refuge!
Partners for Fish and Wildlife Program
Are you looking to improve or create wildlife habitat on your privately-owned land?
Click here to learn more
Bienvenida Mariposas Monarca
Monarch butterflies are arriving in Mexico and settling into their winter homes at places like El Rosario and Chincua Butterfly Sanctuaries.
Learn more about their journey.
About the NWRS
The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.
Learn more about the NWRS
Union Slough National Wildlife Refuge was established by an Executive Order in 1938 and was designated a migratory waterfowl refuge.
Page Photo Credits All photos courtesy of USFWS unless otherwise noted.
Last Updated: Oct 20, 2016