[1] The county seat is historic Idaho City,[2] which is connected through a series of paved and unpaved roads to Lowman, Centerville, Placerville, Pioneerville, Star Ranch, Crouch, Garden Valley, and Horseshoe Bend.[6] The Boise Basin, which contains Idaho City, was one of the nation's richest gold mining districts; gold was discovered in 1862,[5] and more of it was pulled from present-day Boise County than from the entire state of Alaska.[7][8] The county's boundaries changed several times during Idaho's territorial period.The southern boundary common to present Ada County was defined the following year.[12] The highest point in the county is Thompson Peak at 10,751 feet (3,277 m), on its eastern border in the Sawtooth Wilderness.The elevated central basin area rises 1,700 feet (520 m) higher than Horseshoe Bend for instance and thus receives significantly more snow during the winter.Placerville roofs must be designed to withstand 150 pounds per square foot of snow whereas Horseshoe Bend is a third of that at 52.The Ponderosa Pine Scenic Byway on State Highway 21 climbs northeast from Boise to Idaho City and Lowman, and ends at Stanley in Custer County, at the junction with State Highway 75.It heads north from Eagle to Horseshoe Bend and climbs the whitewater of the Payette River to Cascade and McCall in Valley County, and ends at New Meadows in Adams County, at the junction with US Route 95.[24] Hattie F. Noble was the first woman to represent Boise in 1898, after Idaho had given voting rights to women in 1896.School districts include:[34] Residents are in the area (but not the taxation zone) for College of Western Idaho.