Montana · Mountain biking · West Fork Bitterroot River

Bonnie Blue

1.7 mi
distance
201 ft
climb
Jul–Sep
best months

Is Bonnie Blue open right now?

Alert in the area

The Forest Service lists 4 alerts for Bitterroot National Forest.

As of · Source: USFS · Bitterroot National Forest. Agencies don't list every closure — check before you go.

Bonnie Blue is a short mountain biking ride in western Montana, set in the West Fork Ranger District of the Bitterroot National Forest. The route is about 1.7 miles long, with a low of about 5,490 feet and a high of about 5,654 feet. The steepest section, a 14% grade, comes around the 1.3-mile mark. Summer is the most comfortable time to ride. At a weather station about 20 miles away, typical July highs average 82°F with lows near 43°F, and September cools to typical highs around 73°F. That station sits roughly 1,200 feet lower than the route, so expect it to run cooler up top. The Two Creek hike starts about 0.4 miles away, and the Mud Creek mountain biking trail is about 0.9 miles off. For an overnight stay, Rombo campground is about 1.6 miles away, and the Nez Perce Fork paddling route lies about 2.3 miles from the ride.

  • Best time to go · Jul–Sep

    Best time to visit Bonnie Blue

    Best months: July–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

    1. Jan

      34° / 13°

      8 wet

    2. Feb

      39° / 14°

      7 wet

    3. Mar

      48° / 22°

      9 wet

    4. Apr

      55° / 27°

      11 wet

    5. May

      64° / 33°

      13 wet

    6. Jun

      72° / 40°

      13 wet

    7. Jul

      82° / 43°

      9 wet

    8. Aug

      81° / 40°

      7 wet

    9. Sep

      73° / 34°

      7 wet

    10. Oct

      58° / 27°

      8 wet

    11. Nov

      43° / 20°

      10 wet

    12. Dec

      33° / 12°

      10 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Sula 3 Ene, MT, 19.7 mi away at 4,475 ft. The station sits about 1,200 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Map and trail data © OpenStreetMap contributors