Valley County is a rural county located in the U.S. state of Idaho. As of the 2020 census, the population was 11,746. The county seat is Cascade, and the largest city is McCall. Established in 1917, it was named after the Long Valley of the North Fork of the Payette River, which extends over 30 miles (50 km) from Payette Lake at McCall south to Cascade to Round Valley. The valley was formerly a summer pasture for livestock from the Boise Valley. Since the completion of the Cascade Dam in 1948, much of the northern valley has been covered by the Cascade Reservoir.
Gem County is a county in the U.S. state of Idaho. As of the 2020 census, the population was 19,123. The county seat and largest city is Emmett.
Boise County is a rural mountain county in the U.S. state of Idaho. As of the 2020 United States Census, the population was 7,610. The county seat is historic Idaho City, which is connected through a series of paved and unpaved roads to Lowman, Centerville, Placerville, Pioneerville, Star Ranch, Crouch, Garden Valley, and Horseshoe Bend.
Ada County is located in the southwestern part of Idaho, United States. As of the 2020 census, the county had a population of 494,967, which by 2022 was estimated to have risen to 518,907. Ada County is by far the state's most populous county; it is home to 26.8% of the state's population. The county seat and largest city is Boise, which is also the state capital. Ada County is included in the Boise metropolitan area. The Ada County Highway District has jurisdiction over all the local county and city streets, except for private roads and state roads. In the interior Pacific Northwest east of the Cascade Range, Ada County ranks second in population, behind Spokane County, Washington.
New Meadows is a rural city in Adams County, Idaho, United States, at the southern and upper end of the Meadows Valley, on the Little Salmon River. Located in the west central part of the state, just south of the 45th parallel, the population was 496 at the 2010 census, down from 533 in 2000. New Meadows is located at the junction of the primary north–south highway in the state, U.S. Route 95, and State Highway 55, which connects it with McCall and Boise.
Horseshoe Bend is the largest city in rural Boise County, in the southwestern part of the U.S. state of Idaho. Its population of 707 at the 2010 census was the largest in the county, though down from 770 in 2000.
Emmett is a city in Gem County, Idaho, United States. The population was 6,557 at the 2010 census, up from 5,490 in 2000. It is the county seat and the only city in the county. Emmett is part of the Boise−Nampa, Idaho Metropolitan Statistical Area.
Donnelly is a city in rural Valley County, Idaho, United States. The population was 152 at the 2010 census.
McCall is a resort town on the western edge of Valley County, Idaho, United States. Named after its founder, Tom McCall, it is situated on the southern shore of Payette Lake, near the center of the Payette National Forest. The population was 2,991 as of the 2010 census, up from 2,084 in 2000.
The Payette River is an 82.7-mile-long (133.1 km) river in southwestern Idaho and a major tributary of the Snake River.
Boise National Forest is a National Forest covering 2,203,703 acres (8,918.07 km2) of the U.S. state of Idaho. Created on July 1, 1908, from part of Sawtooth National Forest, it is managed by the U.S. Forest Service as five units: the Cascade, Emmett, Idaho City, Lowman, and Mountain Home ranger districts.
Lowman is a small rural census-designated place in Boise County, Idaho, United States. It is nestled along the north bank of the South Fork of the Payette River in the central part of the state, at an elevation of 3,960 feet (1,210 m) above sea level. As of the 2010 census, its population was 42.
Southwestern Idaho is a geographical term for the area along the U.S. state of Idaho's borders with Oregon and Nevada. It includes the populous areas of the Boise metropolitan area and the Treasure Valley.
State Highway 55 (SH-55) is an Idaho highway from Marsing to New Meadows, connecting with US-95 at both ends.
State Highway 200 (SH-200) is an east–west state highway in northern Idaho, United States. It travels along the north side of Lake Pend Oreille and the Clark Fork River between the Sandpoint area and the Montana border, where it continues as Montana Highway 200. The highway is also a national scenic byway that is named the Pend Oreille Scenic Byway. This state highway is part of a continuous chain of similarly numbered state highways that stretch approximately 1,356 miles (2,182 km) from Minnesota to Idaho.
Mores Creek Summit is a mountain pass in the western United States in southwest Idaho, at an elevation of 6,118 feet (1,865 m) above sea level. Traversed by State Highway 21, the Ponderosa Pine Scenic Byway, it is located in Boise County in the Boise National Forest.
Spring Valley Summit is a mountain pass in the western United States in southwestern Idaho, at an elevation of 4,242 feet (1,293 m) above sea level. North of the city of Boise, it is traversed by State Highway 55, the Payette River Scenic Byway.
Banner Creek Summit is a mountain pass in the western United States in central Idaho, at an elevation of 7,037 feet (2,145 m) above sea level. Traversed by State Highway 21, the Ponderosa Pine Scenic Byway, it is located on the border of Custer County and Boise County, also the border of the Challis and Boise National Forests, immediately northwest of the Sawtooth Range.
State Highway 21 (SH-21), also known as the Ponderosa Pine Scenic Byway, is a state highway in Idaho. It runs from Boise to Stanley, primarily as a two-lane road. With two-thirds of its length in Boise County, it passes by historic Idaho City and the village of Lowman to the western edge of the Sawtooth Mountains, then along their northern boundary to Stanley.
