Gem County, Idaho County, Idaho were: Gem County, Idaho Gem County is a county in the U.S. state of Idaho. As of the 2010 census, the population was 16,719. The county seat and largest city is Emmett. Gem County is part of the Boise, ID Metropolitan Statistical Area. Gem County is home to the Idaho ground squirrel. Named for the state nickname, "Gem State," the county was established on March 15, 1915, partitioned from Canyon County and Boise County. Fur trappers were in the area as early as 1818, and Alexander Ross explored Squaw Creek in 1824. Prospectors and miners moved through the
Virginia State Route 115 area on its way to its northern terminus at a diamond interchange with I-81 and US 220. Immediately north of the interchange, Plantation Road continues as SR 815, which turns east to parallel the Interstate before turning north to its end at the dam that impounds Carvin Creek to form Carvin Cove Reservoir just north of the Roanoke–Botetourt county line. Virginia State Route 115 State Route 115 (SR 115) is a primary state highway in the U.S. state of Virginia. Known for most of its length as Plantation Road, the state highway runs from U.S. Route 221, US 460, and