Wyoming Atlas of Historical County Boundaries
John H. Long, Editor; Peggy Tuck Sinko, Historical Compiler; Emily Kelley, Research Associate; Laura Rico-Beck, GIS Specialist and Digital Compiler; Peter Siczewicz, ArcIMS Interactive Map Designer; Robert Will, Cartographic Assistant
Copyright The Newberry Library 2004
BEXAR (Texas)
BOISE (Idaho)
CACHE (Utah)
CARTER (see SWEETWATER)
CHAMPOEG (Ore., now MARION [Ore.])
GREEN RIVER (Utah Territory, extinct)
IDAHO (Idaho)
JOHNSON (created as PEASE)
LANE (Ore.)
LINN (Ore.)
MARION (Ore., created as CHAMPOEG; see CHAMPOEG)
MORTON (Nebraska Territory, extinct)
OGALALA (Idaho Territory, extinct)
ONEIDA (Idaho)
OWYHEE (Idaho)
PEASE (see JOHNSON)
RICH (Utah, created as RICHLAND [Utah])
RICHLAND (Utah, see RICH [Utah])
ST. LOUIS (Mo.)
SANTA FE (Texas, extinct)
SHOSHONE (Idaho)
SUMMIT (Utah)
SWEETWATER (created as CARTER)
WASCO (Ore.)
WILSON (Nebraska Territory, extinct)
YELLOWSTONE (Idaho Territory, extinct)