Land classification map of part of South Eastern Idaho [cartographic material] : atlas sheet no. 32(D) / U.S. Geographical Surveys West of the 100th Meridian.Geographical Surveys West of the 100th Meridian (U.S.)[1879]From United States Army Corps of Engineers' Topographical atlas projected to illustrate explorations and surveys west of the 100th meridian of longitude.Prime meridians: Washington and Greenwich.Shows areas classed as agricultural, timber, grazing, and arid or barren.cartographic