Highest roads of Idaho
Located in the northwestern region of the United States, Idaho contains hundreds of individual mountain ranges an unspoiled beauty. It has the most rugged terrain in the country, with 114 named mountain ranges and fifty mountain peaks having an elevation of 10,000 feet above sea level. Literally covered from north to south by the Rocky Mountains, the State is known for its mountainous landscapes and vast swaths of protected wilderness and outdoor recreation areas.
Here comes the list of the highest mountain roads:
| Mountain pass | Elevation | County | Surface |
| Railroad Ridge | 3.180m (10,433ft) | Custer | Gravel |
| Big Windy Peak | 3.170m (10,400ft) | Lemhi | Gravel |
| Twin Peaks South | 3.154m (10,347ft) | Custer | Gravel |
| Trail Peak | 3.147m (10,324ft) | Lemhi | Gravel |
| Lem Peak | 3.083m (10,114ft) | Lemhi | Gravel |
| Pinyon Peak | 3.032m (9,947ft) | Custer | Gravel |
| Sawtell Peak | 3.017m (9,898ft) | Fremont | Gravel |
| Wildhorse Peak | 2.913m (9,560ft) | Custer | Gravel |
| Estes Mountain | 2.900m (9,514ft) | Custer | Gravel |
| Mount Jordan | 2.889m (9,478ft) | Custer | Gravel |
| Trinity Mountain | 2.868m (9,409ft) | Elmore | Gravel |
| Forest Road 086 | 2.846m (9,337ft) | Lemhi | Gravel |
| Oxford Peak | 2.831m (9,288ft) | Franklin | Gravel |
| Red Mountain | 2.830m (9,284ft) | Custer | Gravel |
| Lake Mountain | 2.827m (9,274ft) | Lemhi | Gravel |
| Mount Harrison | 2.823m (9,261ft) | Cassia | Asphalt |
| Mountain Baldy | 2.793m (9,163ft) | Lemhi | Gravel |
| Sedgwick Peak | 2.791m (9,156ft) | Bannock | Gravel |
| Herd Lake Road | 2.778m (9,114ft) | Custer | Gravel |
| Goldstone Pass | 2.774m (9,101ft) | Lemh | Gravel |
| Middle Fork Peak | 2.767m (9,078ft) | Lemhi | Gravel |
| Forest Road 053 | 2.766m (9,074ft) | Custer | Gravel |
| Blackbird Mountain | 2.761m (9,058ft) | Lemhi | Gravel |
| Goldstone Pass | 2.760m (9,055ft) | Lemhi | Gravel |
| Bachelor Mountain | 2.754m (9,035ft) | Custer | Gravel |
| Feltham Creek Point | 2.744m (9,002ft) | Custer | Gravel |
| Leatherman Peak | 2.742m (8,996ft) | Custer | Gravel |
| Walkers Peak | 2.735m (8,973ft) | Valley | Gravel |
| Antelope Pass | 2.726m (8,943ft) | Custer | Gravel |
| Fly Creek Point | 2.724m (8,937ft) | Lemhi | Gravel |
Pic: http://larryprescott.blogspot.com/2015/08/climbing-sheep-mountain-big-windy-peak.html
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