USFS National Forest System Trails · Pike and San Isabel National Forests · Colorado · Updated June 2026
Arnold Gulch Trail (USFS trail 300.A) is a 2.2 mi trail in Pike and San Isabel National Forests, Colorado. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Arnold Gulch Trail?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Accepted but discouraged | — |
| Class 1 e-bike (pedal-assist, 20 mph) | Allowed | year-round |
| Class 2 e-bike (throttle, 20 mph) | Allowed | year-round |
| Class 3 e-bike (pedal-assist, 28 mph) | Allowed | year-round |
Zooming out: across Pike and San Isabel National Forests, 51% of rideable trail miles are open to mountain bikes — a Bike Access Grade of B.
Watch Pike and San Isabel National Forests for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Pike and San Isabel National Forests. Free, unsubscribe anytime.
About this trail
In Pike and San Isabel National Forests, Colorado, Arnold Gulch Trail (USFS trail 300.A) covers 2.2 mi of National Forest System trail. The figures here are pulled from the official US Forest Service trail data for Pike and San Isabel National Forests, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The trail surface is not specified in the USFS record. No grade band is recorded, so a steepness-based difficulty isn't available for this trail. For traditional mountain bikes, use is discouraged according to USFS data. On the electric side, Class 1, Class 2, Class 3 e-bikes are also designated — Class 1 being pedal-assist only, Classes 2 and 3 adding a throttle and higher assisted speed. Its USFS Trail Class (the agency's 1-to-5 development rating) isn't recorded for this segment. Because conditions, closures, and local orders change between data refreshes, confirm the current status with the managing ranger district before you ride.
Frequently asked questions
- Can you mountain bike on Arnold Gulch Trail?
- Mountain-bike use on Arnold Gulch Trail 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 Arnold Gulch Trail?
- Class 1, Class 2, Class 3 e-bikes are designated on Arnold Gulch Trail in the USFS data.
- How long is Arnold Gulch Trail?
- Arnold Gulch Trail measures about 2.2 mi in total, summed across its mapped National Forest System segments.
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 Pike and San Isabel National Forests (USFS trail geometry isn't mapped).
Where to stay near Pike and San Isabel National Forests
Find hotels, cabins, and vacation rentals near Pike and San Isabel National Forests — plan your ride.
Top-rated places to stay near Pike and San Isabel National Forests
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Riding Pike and San Isabel National Forests?
Trail-access updates and trip ideas by email.