Wyoming Highway 319
| Old Yellowstone Highway | |||||||
WYO 319 in red, WYO 319 Spur in blue | |||||||
| Route information | |||||||
| Maintained by WYDOT | |||||||
| Length | 28.75 mi (46.27 km) | ||||||
| Major junctions | |||||||
| South end | I-25 / US 26 / US 87 north of Wheatland | ||||||
| North end | US 18 / US 20 in Orin | ||||||
| Location | |||||||
| Country | United States | ||||||
| State | Wyoming | ||||||
| Counties | Platte, Converse | ||||||
| Highway system | |||||||
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Wyoming Highway 319 (WYO 319) is a 28.75-mile-long (46.27 km) north-south state highway in Platte and Converse counties.