Your search for "AREA38.2538-118.75-118.5" revealed the following:

085A11 Bear Creek Canadian topographic map, 1:50,000 scale

085A11 Bear Creek Canada topo map, 1:50,000 scale

083O03 Adams Creek Canadian topographic map, 1:50,000 scale

083O03 Adams Creek Canada topo map, 1:50,000 scale

Buy map Columbia River Sundale to Heppner Junction (18536-11) by NOAA

Columbia River Sundale to Heppner Junction (18536-11) by NOAA