| State: | CA |
| Type: | SR |
| Route: | 158 |
| Alternate Name: | June Lake Loop |
| Map Notes: | Map of Mono County in eastern California with SR 158 highlighted in red |
| Section: | 458 |
| Length Mi: | 15.828 |
| Length Round: | 3 |
| Restrictions: | Segment from June Lake north to June Lake Loop North Junction closed in winter |
| Direction A: | South |
| Terminus A: | at June Lake Junction |
| Direction B: | North |
| Terminus B: | at June Lake Loop North Junction |
| Counties: | Mono |
| Previous Type: | SR |
| Previous Route: | 156 |
| Next Type: | SR |
| Next Route: | 160 |
State Route 158 (SR 158) is a state highway in the U.S. state of California. Known as the June Lake Loop, it is a loop route of U.S. Route 395 in Mono County that serves the community of June Lake.
The route is a loop west off of U.S. Route 395 passing through the community of June Lake, following the watercourse of June Lake, Gull Lake, Reversed Creek, Silver Lake, Rush Creek and Grant Lake, into the Mono Basin. The highway provides access to several vacation areas, trailheads, and scenic locations, including the June Mountain ski and snowboard resort.
SR 158 from 3.5miles north of June Lake to the northern junction with U.S. Highway 395 is closed during winters, typically from mid-December through mid-April.[1]
SR 158 is not part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.