Arizona State Route 66
SR 66 highlighted in red | ||||
| Route information | ||||
| Maintained by ADOT and Yavapai County Public Works | ||||
| Length | 66.74 mi (107.41 km) Only includes state-maintained mileage | |||
| Existed | 1984–present | |||
| History | Previously US 66 | |||
| Tourist routes | Historic Route 66 | |||
| Major junctions | ||||
| West end | Historic US 66 in Kingman | |||
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| East end | I-40 / BL 40 in Seligman | |||
| Location | ||||
| Country | United States | |||
| State | Arizona | |||
| Counties | Mohave, Coconino, Yavapai | |||
| Highway system | ||||
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State Route 66 (SR 66) is a surface road in the U.S. state of Arizona in Mohave, Coconino, and Yavapai Counties. In 1914, the road was designated as part of the National Old Trails Highway but in 1926 was re-designated as U.S. Route 66 (US 66). In 1985, US 66 was dropped from the highway system. Parts of the highway were either absorbed into Interstate 40 (I-40), turned over to the state (SR 66), or turned over to Yavapai County.