The Auto Tour Will Be Open May 6-14!
The Auto Tour Route will be open sunrise to sunset May 6th-14th in celebration of International Migratory Bird Day.
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
The monarchs that originated in the Midwest and Eastern U.S. migrate to Mexico. In winter month they can be found on one of 12 mountains.
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: Mar 27, 2017