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Lower Acorn Grotto Trail

Intermediate/Difficult Intermediate/Difficult
 5.0 (2)
  1. Areas
  2. CA
  3. …Shasta and Cascades
  4. …Quincy
  5. Mt. Hough & South Park
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“Fun berms, fast flow, a few exposed switchbacks and a great cruise through the oak forest. ”

Yuba Expeditions
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3.8

Miles

6.1

KM
Singletrack

4,543' 1,385 m

High

3,502' 1,067 m

Low

85' 26 m

Up

1,126' 343 m

Down

6%

Avg Grade (3°)

20%

Max Grade (11°)

Dogs Off-leash

E-Bikes Allowed

Features Views

Need to Know

A few exposed tight switchbacks.

Description

Connecting Quarry Rd. to lower Mt. Hough trail, Lower Acorn Grotto connects the Indian Falls Ridge drop from the summit of Mt Hough to train tracks. Great Views, tight switchbacks with a bit of exposure. After the switchbacks comes some steeper rock sections, then comes some long rolling sections through the oak trees.

Contacts

Local Club: Sierra Buttes Trail Stewardship

Oct 21, 2025: SBTS Rolls Out New Race Registration for 2026 Events, Featuring New Discounts and Cancellation Policy

May 27, 2025: American Trails Grant Awarded to SBTS in Support of our Mt. Hough Work

Land Manager: USFS - Plumas National Forest Office

Shared By:

Yuba Expeditions
Full Details

Trail Ratings

  5.0 from 2 votes

#6

in Mt. Hough & South Park

#2852

Overall
  5.0 from 2 votes
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Trail Rankings

#6

in Mt. Hough & South Park

#189

in California

#2,852

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Photos

Lower Acorn Grotto
Jun 28, 2025 near East Qu…, CA
Crossing the creek at the bottom - almost done with the downhill.
May 4, 2021 near East Qu…, CA

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