State Highways in Idaho
State Highway 4 (SH-4) is a state highway in Shoshone County, in the U.S. state of Idaho. It runs 7.360 miles (11.845 km) from Interstate 90 (I-90) in Wallace, east to the ghost town of Burke.
SH-4 begins at an intersection with I-90 in Wallace, then heads generally northeast through Burke Canyon, past historical markers for Frisco Hill and Burke, ending in Burke. The road continues eastward as National Forest Road No. 7623. 
The entire route is in Shoshone County.
Route map: Google / Bing