 State Route 18 | ||||
|---|---|---|---|---|
| Legacy Loop Highway | ||||
 SR-18 highlighted in red | ||||
| Route information | ||||
| Maintained by UDOT | ||||
| Length | 51.005 mi[1] (82.085 km) | |||
| Existed | 1918 as a state highway; 1927 as SR-18–present | |||
| Major junctions | ||||
| South end |  I-15 in St. George | |||
 SR-34 in St. George SR-8 in St. George SR-219 in Enterprise | ||||
| North end |  SR-56 at Beryl Junction | |||
| Location | ||||
| Country | United States | |||
| State | Utah | |||
| Counties | Washington, Iron | |||
| Highway system | ||||
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State Route 18 (SR-18) is a state highway in southern Utah, running for 51.005 miles (82.085 km) in Washington and Iron Counties from St. George to Beryl Junction. It forms part of the Legacy Loop Highway from St. George to Parowan. The highway closely follows the route of the Old Spanish Trail through Dixie National Forest.
- ^ "Highway Reference Online - SR-18". maps.udot.utah.gov. Utah Department of Transportation.