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Lost River Idaho Map

Explore Lost River, Idaho, with this interactive street and satellite map.

Interactive Map of Lost River, Idaho

CityLost River
StateIdaho (ID)
CountyCuster County
CountryUnited States of America
TimezoneMountain Time (America/Boise)
Latitude43.688262
Longitude-113.635283
Population42
Density1.9 /km²
IncorporatedYes
ZIP Codes83255, 83251
Area Code208
County SeatChallis
School DistrictButte County Joint School District 111

About Lost River, Idaho

Lost River is a locality in Custer County, Idaho, United States. It is a small community with a population of 42. The population density is 1.9 people per km². Lost River is located at 43.6883°N, 113.6353°W. It observes the Mountain Time (America/Boise) timezone. Lost River is an incorporated locality. ZIP codes: 83255, 83251.

Lost River emerges from the high, arid expanse where the sagebrush plains meet the stark, sudden verticality of the earth. It lies 72.3 miles west-northwest of Blackfoot, ID (from Blackfoot, ID: bearing 299°T), and is situated 36.9 miles east-northeast of Hailey. Antelope Creek carves a deliberate path through the basin, its waters sustaining a narrow ribbon of green that defies the surrounding parched dust and gray rock. To the horizon, the jagged silhouette of the Lost River Range commands the sky, its peaks holding the light long after the shadows have claimed the valley floor. Only a mile away, the rugged, shadowed depths of Graveyard Canyon offer a silent contrast to the open basin, while the nearby Idaho Department of Lands provides a vast, managed threshold for those who venture into the wilder reaches of the high desert.

Agriculture remains the quiet pulse of Lost River, where the rhythm of the seasons dictates the labor of the day and the lean, hard-working character of the residents. The economy relies upon the endurance of those who know how to draw a living from the stubborn soil, a practice that has defined the region since its earliest settlement. Ten miles away, the waters of Nichols Reservoir stand as a still, reflective presence, serving as a vital anchor for the local landscape. Life here possesses a gravity born of isolation and the immense, open sky, where the wind carries the scent of dry earth and the persistent, quiet promise of a long, cold winter.

Nearby Outdoor Places

  • Challis National Forest (National Forest) — 1.0 mi, 270° W · 2.5M acres
  • White Knob Mountains Wilderness Study Area (Wilderness Study Area) — 1.4 mi, 043° NE · 10k acres
  • Appendicitis Hill Wilderness Study Area (Wilderness Study Area) — 3.6 mi, 088° E · 26k acres
  • Iron Bog Research Natural Area (Research Natural Area) — 6.7 mi, 240° SW
  • Antelope Creek Access Site (State Recreation Area) — 7.3 mi, 062° NE
  • Smiley Mountain Research Natural Area (Research Natural Area) — 8.1 mi, 282° W
  • Sawtooth National Forest (National Forest) — 10.8 mi, 236° SW · 1.8M acres
  • Craters Of The Moon National Monument (National Monument) — 11.7 mi, 165° S · 806k acres
  • Craters of the Moon National Preserve (National Conservation Area) — 11.7 mi, 165° S · 412k acres
  • Craters of the Moon National Wilderness Area Area (Wilderness Area) — 15.4 mi, 161° S · 43k acres
  • Main Theater (Cinema) — 15.6 mi, 004° N
  • Scenic Overlook Craters of the Moon (Viewpoint) — 15.8 mi, 164° S
  • Amphitheater (Theatre) — 16.2 mi, 166° S
  • C. A. Bottolfsen (Monument) — 16.9 mi, 103° E
  • Uss S-27 (Monument) — 17.3 mi, 102° E
  • USS Hawkbill Memorial (Monument) — 17.3 mi, 102° E
  • Tepee Circles (Historic Ruins) — 17.8 mi, 162° S
  • Natural Arch (Attraction) — 18.0 mi, 157° SE
  • Lava Trees (Attraction) — 19.7 mi, 164° S
  • Lava Field (Attraction) — 21.3 mi, 136° SE
  • Bridge of Tears (Attraction) — 23.8 mi, 155° SE
  • Jim McClure-Jerry Peak Wilderness Area (Wilderness Area) — 31.8 mi, 320° NW · 120k acres
  • Sawtooth National Recreation Area (National Recreation Area) — 37.7 mi, 289° W · 754k acres
  • Birch Creek Charcoal Kilns (Historic Ruins) — 48.6 mi, 028° NE
  • The Butterfly Haven (Nature Reserve) — 63.7 mi, 124° SE
  • Painted Rock (Public Artwork) — 63.8 mi, 333° NW
  • Shoshone Showhouse (Cinema) — 64.9 mi, 217° SW
  • Custer Museum (Museum) — 71.5 mi, 313° NW
  • Bingham County Historical Museum (Museum) — 73.5 mi, 118° SE
  • Minidoka County Historical Society Museum (Museum) — 73.9 mi, 181° S

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About This Lost River Map Page

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 Custer County (Challis), 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 generatedAugust 2026
Location dataSimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data
Wikipedia validationArticle content matched to USGS GNIS coordinates via Wikipedia geosearch API.