Indiana State Road 66
SR 66 highlighted in red | ||||
| Route information | ||||
| Maintained by INDOT | ||||
| Length | 150.862 mi (242.789 km) | |||
| Existed | October 1, 1926–present | |||
| Major junctions | ||||
| West end | SR 69 in Harmony Township | |||
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| East end | US 150 in Hardinsburg | |||
| Location | ||||
| Country | United States | |||
| State | Indiana | |||
| Counties | Posey, Vanderburgh, Warrick, Spencer, Perry, Crawford, Washington | |||
| Highway system | ||||
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State Road 66 is an east–west highway in seven counties in the southernmost portion of the U.S. state of Indiana.