Idaho State Highway 4
|Burke Road, Burke-Canyon Creek Road|
|Maintained by ITD|
|Length:||7.380 mi (11.877 km)|
|West end:||I-90 in Wallace|
|East end:||National Forest Road No. 7623 at 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. 
In the 1930's, Route 4 was envisioned as a cross-state route, to directly connect Wallace to Thompson Falls, Montana over Glidden Pass, as seen on the 1937 map (later routed over Cooper Pass). This plan was abandoned due to impassable roads and World War II. Paved SH-4 was truncated at Burke.
National Forest Road 7623 still connects Burke to Montana Secondary Highway 471 leading to Thompson Falls.
The entire route is in Shoshone County.
|Burke||7.380||11.877||National Forest Road No. 7623||Eastern terminus; continues as FR 7623|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Idaho Transportation Department (November 26, 2008). "Milepost Log". Retrieved 2008-12-27.
- Idaho Transportation Department (May 26, 2005). "Idaho Highway Historical Marker Guide Index". Retrieved 2008-12-27.
- Texaco; Rand McNally and Company (1937). Road map: Idaho, Mont., Wyo. (Map). Chicago: Rand McNally.[full citation needed]