Yes, the U.S. Fish & Wildlife Service manages public land, like Hanford Reach National Monument. But that's only part of the story. From tagging polar bears in the frozen Arctic Circle to cleaning oil spills in the tidelands of Louisiana, from testing fish for agricultural contaminants in the shrub-steppe of eastern Washington to reviewing hydropower proposals in the rugged mountains of West Virginia, from providing grants for local wildlife conservation in Michigan to raising endangered sturgeon at hatcheries in Oregon, the FWS can be found anywhere wildlife might be impacted. Sure you've seen pictures of FWS personnel releasing wolves into Yellowstone National Park or California condors into the canyons of Arizona. But FWS agents can be found working in airport terminals in Miami looking for smuggled endangered turtles from South America. FWS personal can be found on university campuses working on lamprey control in the Great Lakes. Within the FWS, conservation is more than national wildlife refuges.
And it's often more than conservation of wildlife. Like other federal agencies, the FWS is responsible for protecting wilderness, wild & scenic rivers and other protected areas found within lands the agency manages. Like other federal agencies, the FWS is responsible for protection of Native American trust resources. And like other federal agencies, the FWS is responsible for protecting historic and cultural resources found on its lands, from Traditional Cultural Properties on the Hanford Reach National Monument to the Whitcomb-Cole Hewn Log House on Conboy Lake NWR, listed on the National Register of Historic Places.