Idaho State Highway 66
# Idaho State Highway 66

State Highway 66 (SH-66) is a state highway located entirely within Latah County, Idaho, United States. It travels for less than one mile (1.6 km) from Palouse Cove Road at the Washington state line to U.S. Route 95 (US-95) north of Viola. The highway is maintained by the Idaho Transportation Department.

## Route description

SH-66 begins at the Washington state line as a continuation Palouse Cove Road, which connects to the city of Palouse. From the state line, the highway travels southeast through a rural area and turns east to reach its terminus at US-95 north of Viola. The route is a two-lane undivided road for its entire length.

## Major intersections

The entire route is in Latah County.

| Location | mi | km | Destinations | Notes |
| - | - | - | - | - |
| ​ | 0.000 | 0.000 | Palouse Cove Road | Continuation into Washington |
| ​ | 0.992 | 1.596 | US 95 – Potlatch, Moscow, Lewiston | Eastern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi |||||
