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Stanislaus National Forest · California

Dorrington Ohv Atv D52 S12

1.2 miAdvanced grade band

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USFS National Forest System Trails · Stanislaus National Forest · California · Updated June 2026

Dorrington Ohv Atv D52 S12 (USFS trail 15EV57) is a 1.2 mi trail in Stanislaus National Forest, California. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.

1.2 mi
Trail length
Advanced
Grade-based difficulty
grade band +12-20%
Native Material
Surface
Class 2
USFS trail class
1 primitive · 5 developed

Can I bike Dorrington Ohv Atv D52 S12?

Bike and e-bike designations on Dorrington Ohv Atv D52 S12, from USFS travel-management data
UseStatusSeason on record
Mountain bikeAccepted but discouraged
Class 1 e-bike (pedal-assist, 20 mph)AllowedApr–Dec
Class 2 e-bike (throttle, 20 mph)AllowedApr–Dec
Class 3 e-bike (pedal-assist, 28 mph)AllowedApr–Dec

Zooming out: across Stanislaus National Forest, 84% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.

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About this trail

In Stanislaus National Forest, California, Dorrington Ohv Atv D52 S12 (USFS trail 15EV57) covers 1.2 mi of National Forest System trail. This profile summarizes what the official US Forest Service trail record says about riding it: how long the trail is, what it's built on, how steep the route grades out, and which forms of bike use the agency has designated. Underfoot, the trail is recorded as native material. Based on slope, this is a Advanced trail (grade band +12-20%); that reflects steep gradient and is not the same as a technical MTB difficulty rating. For traditional mountain bikes, use is discouraged according to USFS data. The record additionally permits Class 1, Class 2, Class 3 e-bike use, Apr–Dec; recall that Class 1 is pedal-assist, while Class 2 adds a throttle and Class 3 a higher cutoff speed. The route is mapped as USFS Trail Class 2 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. Treat this as a planning reference rather than a live conditions report, and verify any time-sensitive closure or order with the ranger district that manages Stanislaus National Forest.

Frequently asked questions

Can you mountain bike on Dorrington Ohv Atv D52 S12?
Mountain-bike use on Dorrington Ohv Atv D52 S12 is discouraged in USFS records, though Class 1 e-bike use is designated. Confirm current rules with the managing ranger district.
Are e-bikes allowed on Dorrington Ohv Atv D52 S12?
Class 1, Class 2, Class 3 e-bikes are designated on Dorrington Ohv Atv D52 S12 in the USFS data.
How long is Dorrington Ohv Atv D52 S12?
Dorrington Ohv Atv D52 S12 measures about 1.2 mi in total, summed across its mapped National Forest System segments.
What is the surface of Dorrington Ohv Atv D52 S12?
USFS data records the tread surface of Dorrington Ohv Atv D52 S12 as native material.
How difficult is Dorrington Ohv Atv D52 S12?
Its grade-based difficulty is Advanced (grade band +12-20%), derived from USFS slope data. This reflects steepness, not technical mountain-bike difficulty.

How we read this data

Grade-based difficulty above is the USFS grade (route steepness), not a technical mountain-bike rating — a gentle-grade trail can still be rocky or technical, and vice versa. Bike and e-bike status come verbatim from the USFS managed-use fields for this trail; we never infer access we can't cite. See our methodology for how the dataset is built and what each field means.

Where it is

Approximate location of Stanislaus National Forest (USFS trail geometry isn't mapped).

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