Boise Riverside RV Park
Campground
Campground · 3.4 mi from the trail
Idaho · Mountain biking · Near Idaho City
Who Now Loop #51
- 0.6 mi
- round trip
- 315 ft
- climb
- Singletrack
- surface
- Out and back
- route
- Apr–Jun, Sep–Oct
- best months
Who Now Loop #51 is a short, hard mountain biking route in Idaho's Hillside to Hollow Reserve, a city-managed reserve. The trail is about 0.6 miles long and is an out-and-back, with the high point at 3,062 feet and the low at 2,893 feet. The climb is steepest at about 0.36 miles, with a 12% grade, and the total round-trip gain is about 315 feet. The most comfortable months for riding are typically late spring and early fall. Typical averages from the nearby Boise Air Terminal weather station show May highs around 72°F and September highs around 80°F, while July and August average in the low 90s. Dogs are allowed on this trail, but they must be leashed. The closest neighbors are #57A Harrison Hollow Loop, about 0.2 miles away, and #58 Harrison Ridge, a hike about 0.3 miles off. Rocky Canyon, a climbing area, is about 4 miles away, and the Boise River offers river fishing about 6.7 miles away.
Around this trail
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If it rainsCamEQ, Facade of Art Museum designed by Trout Architects and Mark Mack in 1988, Public domain · Wikimedia Commons
Places © OpenStreetMap contributors · Photos: CamEQ, Facade of Art Museum designed by Trout Architects and Mark Mack in 1988, Public domain (commons)
More in Idaho CityLocal outfitters
- Riverpond Campground34 mi away
Not on Roamze yet. Their page has how to reach them.
Best time to go · Apr–Jun, Sep–Oct
Best time to visit Who Now Loop #51
Best months: April–June 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.
Jan
39° / 26°
11 wet · 5 snow
Feb
46° / 29°
9 wet · 3 snow
Mar
55° / 35°
10 wet · 2 snow
Apr
62° / 40°
9 wet
May
72° / 48°
8 wet
Jun
81° / 54°
5 wet
Jul
93° / 62°
3 wet
Aug
91° / 61°
2 wet
Sep
80° / 53°
4 wet
Oct
65° / 42°
6 wet
Nov
49° / 32°
10 wet · 2 snow
Dec
39° / 25°
12 wet · 5 snow
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boise Air Terminal, ID, 5.9 mi away at 2,814 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Keep exploring — more rides worth the drive
RIDE
Who Now Loop #51
Next door
0.39-mile hard out-and-back singletrack in Idaho with 211 ft elevation gain.
RIDE
#57A Harrison Hollow Loop
Next door
0.11-mile easy gravel road out-and-back in Idaho with 10 ft gain.
RIDE
#57 Harrison Hollow (AWT)
Next door
0.78-mile out-and-back singletrack with 208 ft gain in Idaho.
RIDE
#54 Robert Smylie
Next door
0.82-mile trail in Full Sail, Idaho, gaining 236 ft of elevation.
RIDE
#57A Harrison Hollow Loop
Next door
0.27-mile easy gravel road out-and-back in Idaho with 31 ft gain.
RIDE
#57 Harrison Hollow (AWT)
Next door
0.10-mile moderate singletrack out-and-back in Idaho with 54 ft elevation gain.
RIDE
#53 Buena Vista
Next door
#53 Buena Vista is a 1.69-mile sand trail in Full Sail, Idaho with 973 ft of elevation gain.
RIDE
#57A Harrison Hollow Loop
Next door
#57A Harrison Hollow Loop is a 0.25-mile easy gravel road out-and-back in Idaho with 69 ft of elevation gain.
RIDE
#29 Lower Hulls Gulch
~2 min drive
0.1 mi · Moderate
RIDE
#55 West Climb
~1 min drive
#55 West Climb is a 0.28-mile climb at Full Sail with 14 ft gain
Also worth it near here
Map and trail data © OpenStreetMap contributors
