Idaho · Mountain biking

Shark's Tooth

0.3 mi
round trip
241 ft
climb
Singletrack
surface
Out and back
route
May–Jun, Aug–Oct
best months

Shark's Tooth is a short, out-and-back mountain biking route in Idaho, about a quarter mile from the town of Challis on land managed by the Bureau of Land Management's Challis Field Office. The climb is only about 30 feet, and the route is less than half a mile long, so it works well as a quick stop or a warm-up before heading to other trails nearby. The trail starts at an elevation of about 5,912 feet and reaches a high point of about 5,928 feet, with the steepest stretch coming early in the ride at about 9 percent. The route is rated moderate. Summer is the most comfortable time to ride. Typical averages from a nearby weather station in Challis put July highs around 87°F with lows near 52°F, while winter highs stay in the high 20s. Several other rides sit right beside the trail, including Skull Valley, Mahogany and John Henry, all within about a tenth of a mile. For a break from the saddle, the Challis-Yankee Fork Ranger District, about 1.7 miles away, offers river fishing.

Local outfitters

Not on Roamze yet. Their page has how to reach them.

  • Best time to go · May–Jun, Aug–Oct

    Best time to visit Shark's Tooth

    Best months: May–June and August–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

      29° / 11°

      7 wet

    2. Feb

      37° / 17°

      5 wet

    3. Mar

      49° / 25°

      7 wet

    4. Apr

      57° / 31°

      7 wet

    5. May

      67° / 40°

      9 wet

    6. Jun

      75° / 46°

      7 wet

    7. Jul

      87° / 52°

      5 wet

    8. Aug

      85° / 50°

      5 wet

    9. Sep

      74° / 42°

      5 wet

    10. Oct

      59° / 32°

      5 wet

    11. Nov

      40° / 21°

      6 wet

    12. Dec

      29° / 11°

      7 wet

    Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Challis Ap, ID, 2.9 mi away at 5,033 ft. The station sits about 900 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.

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