Question: Spalding is an unincorporated community in Nez Perce County, Idaho, United States, ten miles east of Lewiston, on the Clearwater River close to the intersection of U.S. Routes 12 and 95, U.S. Route 95 (US 95) is a north–south U.S. highway in the western part of which country?

Context paragraphs:
U.S. Route 95: U.S. Route 95 (US 95) is a north–south U.S. highway in the western United States.  Unlike many other US highways, it has not seen deletion or replacement on most of its length by an encroaching Interstate highway corridor, due to its mostly rural course.  Because of this, it still travels from border to border and is a primary north–south highway in both Nevada and Idaho.  This is one of the only US Routes or Interstate highways to cross from Mexico to Canada.

Lenore, Idaho: Lenore is an unincorporated community in Nez Perce County, Idaho, United States.  Lenore is located on the north bank of the Clearwater River 23 mi east-northeast of Lewiston.  Lenore has a post office with ZIP code 83541.

Nevada State Route 599: State Route 599 (SR 599) is a 7.049 mi state highway in Clark County, Nevada.  The route follows Rancho Drive, a major arterial connecting downtown Las Vegas to the northwest part of the city.  Much of SR 599 was previously designated as U.S. Route 95 (US 95) prior to completion of the Las Vegas Expressway.  The route is also designated as U.S. Route 95 Business (US 95 Bus.) .

U.S. Route 95 Truck (Hawthorne, Nevada): U.S. Route 95 Truck (US 95 Truck) is a truck route of US 95 in Mineral County, Nevada, in the United States.  It serves as a bypass route for trucks taking US 95 past Hawthorne in either direction, as US 95 itself goes through that community.  The route is co-designated as State Route 362 (SR 362); however, that designation is unsigned.

U.S. Route 95 Alternate (Schurz–Fernley, Nevada): In the U.S. state of Nevada, U.S. Route 95 Alternate (US 95 Alt., sometimes referred to as US 95A) is an alternate route of U.S. Route 95 located in the western part of the state.  It connects Schurz to Interstate 80 via the cities of Yerington and Fernley.

Greer, Idaho: Greer is an unincorporated community in Clearwater County, Idaho, on the Nez Perce Indian Reservation.  Greer is located along the Clearwater River and Idaho State Highway 11, near the junction with U.S. Route 12 (also known as the Northwest Passage Scenic Byway), 7 mi southeast of Orofino.

Spalding, Idaho: Spalding is an unincorporated community in Nez Perce County, Idaho, United States, ten miles east of Lewiston, on the Clearwater River close to the intersection of U.S. Routes 95 and 12.  The village was named after Reverend Henry Harmon Spalding, a missionary who taught the neighboring Nez Percé irrigation.

Fort Lapwai: Fort Lapwai (1862–1884), was a federal fort in present-day Lapwai in north central Idaho, United States.  On the Nez Perce Indian Reservation in Nez Perce County, it was originally called Camp Lapwai until 1863.  East of Lewiston, it was located on the west bank of Lapwai Creek, three miles (5 km) above where it joins the Clearwater River at the state's first settlement, Lapwai Mission Station (now Spalding), built in 1836 by Henry Spalding.  It is part of the multi-site Nez Perce National Historical Park.  The word "Lapwai" means place of the butterflies, as the area had thousands in early summer in earlier years.

Idaho State Highway 128: State Highway 128 (SH-128) is a 2.198 mi state highway in the U.S. state of Idaho, serving the city of Lewiston in Nez Perce County.  The highway travels east along the Clearwater River within Lewiston from Washington State Route 128 (SR 128) to U.S. Route 12 (US-12).

Jurden Henry Elfers Barn and Field: The Jurden Henry Elfers Barn and Field is a historic site located on the south bank of John Day Creek, .33 mi east of U.S. Route 95 and north of Lucile, Idaho.  The barn and field were the site of a raid by members of the Nez Perce tribe in 1877.  White settlers had forced the Nez Perce to live on a reservation at Lapwai, and a group of young men from the tribe sought revenge against the settlers.  The men raided several sites along the Salmon River, including the Elfers' ranch.  During their raid on the ranch, the Nez Perce killed Jurden Henry Elfers, his nephew Henry "Harry" Burn Beckrodge, and hired worker Robert Bland, who were working at the barn and field at the time.  The men also stole several horses and a rifle from the property.  The raid was one of the main causes of the Nez Perce War, as soldiers at Fort Lapwai responded to the raids by attacking Chief Joseph's camp.  The barn and field are one of the few surviving sites connected to the events leading to the start of the war.

Supporting paragraphs: Spalding, Idaho U.S. Route 95
Answer: United States