| Famous climb |
| 1 hairpin turn |
| #53 toughest climb of Rocky Mountains |
| #36 most elevation gain of Rocky Mountains |
| #51 longest climb of North America |
| #27 average steepest climb of Washington |
Lewiston Highway from Grande Ronde River is a climb in the region Washington. It is 24.3 mi long and bridges 3973 ft of vertical ascent with an average gradient of 3.1%, resulting in a difficulty score of 568. The top of the ascent is located at 4888 ft above sea level. Climbfinder users shared 0 reviews of this climb and uploaded 0 photos.
Road names: State Route 129 & Lewiston Highway
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| 5 mph | 04:53:51 |
| 7 mph | 03:28:02 |
| 9 mph | 02:42:07 |
| 12 mph | 02:01:48 |
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