USFS National Forest System Trails · Tongass National Forest · Alaska · Updated June 2026
Iris Overlook East Road (USFS trail 3175903) is a 1.5 mi trail in Tongass National Forest, Alaska. Mountain-bike use here is accepted but discouraged in USFS data, with Class 1 e-bikes also designated.
Can I bike Iris Overlook East Road?
| 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 Tongass National Forest, 0% of rideable trail miles are open to mountain bikes — a Bike Access Grade of F.
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About this trail
In Tongass National Forest, Alaska, Iris Overlook East Road (USFS trail 3175903) covers 1.5 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. The tread is mapped as imported loose material. Its grade-based difficulty is Easy (grade band +0-5%) — a gentle steepness profile derived from USFS slope data, not a technical mountain-bike 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; 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 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. 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 Tongass National Forest.
Frequently asked questions
- Can you mountain bike on Iris Overlook East Road?
- Mountain-bike use on Iris Overlook East Road 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 Iris Overlook East Road?
- Class 1, Class 2, Class 3 e-bikes are designated on Iris Overlook East Road in the USFS data.
- How long is Iris Overlook East Road?
- Iris Overlook East Road measures about 1.5 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Iris Overlook East Road?
- USFS data records the tread surface of Iris Overlook East Road as imported loose material.
- How difficult is Iris Overlook East Road?
- Its grade-based difficulty is Easy (grade band +0-5%), 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 Tongass National Forest (USFS trail geometry isn't mapped).
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