Explore Lost River, Idaho, with this interactive street and satellite map.
| City | Lost River |
| State | Idaho (ID) |
| County | Butte County |
| Country | United States of America |
| Timezone | Mountain Time (America/Boise) |
| Latitude | 43.688262 |
| Longitude | -113.635283 |
| Population | 42 |
| Density | 1.9 /km² |
| Incorporated | Yes |
| ZIP Codes | 83255, 83251 |
| Area Code | 208 |
| County Seat | Arco |
| School District | Butte County Joint School District 111 |
Lost River carves a path through a high, arid basin where the light possesses a sharp, clinical clarity that strips the shadows from the sagebrush. It lies 62.0 miles northwest of Blackfoot, ID (from Blackfoot, ID: bearing 304°T), and is situated 48.7 miles east-northeast of Hailey. The Big Lost River courses through the valley floor, its currents often pulling away from the surface to vanish into the porous, volcanic earth before rising again to cool the parched soil. To the distance, the jagged silhouettes of the Lost River Range loom against the horizon, marking the outer perimeter of a landscape defined by silence and the slow movement of wind over bunchgrass. Two miles to the east, the rugged terrain of the Appendicitis Hill Wilderness Study Area rises in solitary defiance, its slopes untouched by the plow, while the hidden depressions of Rocky Canyon offer a shadowed reprieve from the relentless sun that bleaches the plains of Lost River into shades of pale ochre and gray.
Agriculture remains the primary pulse of the local economy, with the irrigation of fields drawing life from the water that persists despite the dry climate. Those who work this land measure their time by the seasonal cycles of the harvest and the maintenance of fences that stretch toward the horizon, far from the recreational pull of the Nichols Reservoir. History here is written in the labor of those who cleared the basalt-strewn earth, finding resilience in a geography that demands much and promises little beyond the quiet endurance of the high desert. Life in Lost River moves with a deliberate, measured pace, influenced by the vastness of the sky and the reality of a terrain that refuses to be tamed, leaving the inhabitants to exist in a persistent, dignified harmony with the harsh, beautiful constraints of the region.
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This page provides an embedded street and satellite map of Lost River, Idaho. Coordinates: 43.688262, -113.635283. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.
Detailed location data for Lost River includes the ZIP code (83255, 83251), telephone area code (208), county seat of Butte County (Arco), and school district assignment (Butte County Joint School District 111).
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.
| Page generated | August 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. |