Inspecting for aquatic hitch hikers at the Al-Can border

USFWS Biologist Michael Foley inspects recreational boats for aquatic invasive species crossing the US Alaskan-Canadian border at Tok near Tetlin National Wildlife Refuge. Just one tiny invasive quagga mussel from an infested lake can spell trouble for infrastructure, native species, and everyone else recreating and making a living in Alaska's unspoiled waters.