The Union Slough NWR Auto Tour Route is currently closed for the season. It will reopen from May 6th through May 14th in celebration of World Migratory Bird Day.
Visit Us
National wildlife refuges offer the outdoor enthusiast an opportunity to escape from the stresses of daily life and reconnect with nature. Union Slough National Wildlife Refuge has excellent ways for outdoor enthusiasts to connect with the natural world.
Location and Contact Information
Our Species
More than 240 species of birds have been seen on Union Slough National Wildlife Refuge, with more than 100 species known nest on the refuge. The refuge is the epicenter of trumpeter swan nesting in Iowa. Federally threatened prairie bush-clover and state endangered Blanding’s turtles are found on the refuge.