Colorado · Rock climbing · Grand Junction

Bomb Over Bentonite (BOB) Boulder

6 bouldering routes in Colorado, ranging across 6 difficulty grades.

6 routes
V0 – V4
Bouldering

Best time to visit Bomb Over Bentonite (BOB) Boulder

Best months: March–May and September–October. 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

    39° / 19°

  2. Feb

    47° / 26°

  3. Mar

    59° / 35°

  4. Apr

    67° / 41°

  5. May

    77° / 50°

  6. Jun

    89° / 59°

  7. Jul

    95° / 66°

  8. Aug

    91° / 64°

  9. Sep

    82° / 55°

  10. Oct

    67° / 42°

  11. Nov

    52° / 30°

  12. Dec

    39° / 21°

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Grand Junction Wfo, CO, 7 mi away at 4,826 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Bomb Over Bentonite (BOB) Boulder is a climbing area on Bureau of Land Management land in the Grand Junction Field Office, about 10 miles from Grand Junction, Colorado. It sits among a cluster of bouldering spots, with New Mexico Boulder and Indian Garden Boulders each about 0.1 mile away and El Chupacabra Area about 0.2 mile off. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station in Grand Junction show May highs around 77°F and October highs around 67°F, while July averages climb to about 95°F. The Camp campground is about 2.2 miles away, and Camp Eddy is about 3.4 miles away. Mountain bikers can ride Coyote Ridge Trail, Raven Ridge Trail and Ali Alley Trail, all within about 0.2 mile.

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