USFS National Forest System Trails · Black Hills National Forest · South Dakota · Updated June 2026
Merritt 09 (USFS trail 6209) is a 1.4 mi trail in Black Hills National Forest, South Dakota. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Merritt 09?
| 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 Black Hills National Forest, 34% of rideable trail miles are open to mountain bikes — a Bike Access Grade of C.
Watch Black Hills National Forest for access changes
Email me when USFS mountain-bike or e-bike designations change for trails in Black Hills National Forest. Free, unsubscribe anytime.
About this trail
Merritt 09 (USFS trail 6209) is a 1.4 mi trail in Black Hills National Forest, South Dakota. The figures here are pulled from the official US Forest Service trail data for Black Hills National Forest, covering the trail's mileage, tread, grade band, and the bike and e-bike uses the agency lists as designated. The tread is mapped 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. Note that mountain-bike use here is discouraged in USFS records — confirm with the ranger district before riding. 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. The route is mapped as USFS Trail Class 3 on the agency's 1-to-5 development scale, where 1 is the most primitive, minimally maintained tread and 5 is the most developed. For day-of certainty on closures or seasonal orders, check directly with the ranger district, since this reflects the USFS data as of the latest refresh.
Frequently asked questions
- Can you mountain bike on Merritt 09?
- Mountain-bike use on Merritt 09 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 Merritt 09?
- Class 1, Class 2, Class 3 e-bikes are designated on Merritt 09 in the USFS data.
- How long is Merritt 09?
- Merritt 09 measures about 1.4 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Merritt 09?
- USFS data records the tread surface of Merritt 09 as native material.
- How difficult is Merritt 09?
- 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 Black Hills National Forest (USFS trail geometry isn't mapped).
Where to stay near Black Hills National Forest
Find hotels, cabins, and vacation rentals near Black Hills National Forest — plan your ride.
Top-rated places to stay near Black Hills National Forest
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Riding Black Hills National Forest?
Trail-access updates and trip ideas by email.
More trails in Black Hills National Forest
37.5 mi · Advanced grade
31 mi · Advanced grade
22.6 mi · Advanced grade
11.1 mi · Advanced grade
6.8 mi · Advanced grade
5.6 mi · Advanced grade