USFS National Forest System Trails · Shasta-Trinity National Forest · California · Updated June 2026
Packers Fish Loop (USFS trail 04W17) is a 0.7 mi trail in Shasta-Trinity National Forest, California. Mountain bikes are designated as allowed year-round, with no Class 1 e-bike designation on record.
Can I bike Packers Fish Loop?
| Use | Status | Season on record |
|---|---|---|
| Mountain bike | Allowed | year-round |
| Class 1 e-bike (pedal-assist, 20 mph) | — | |
| Class 2 e-bike (throttle, 20 mph) | — | |
| Class 3 e-bike (pedal-assist, 28 mph) | — |
Zooming out: across Shasta-Trinity National Forest, 77% of rideable trail miles are open to mountain bikes — a Bike Access Grade of A.
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About this trail
Packers Fish Loop (USFS trail 04W17) is a 0.7 mi trail in Shasta-Trinity National Forest, California. 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 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. Mountain bikes are allowed, open year-round in the data. No e-bike class (1, 2 or 3) is designated on this trail in the USFS data, so treat it as a non-motorized route unless a posted order says otherwise. The route is mapped as USFS Trail Class 4 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 Packers Fish Loop?
- Yes. Mountain bikes are designated as allowed on Packers Fish Loop in Shasta-Trinity National Forest, year-round, per USFS data.
- Are e-bikes allowed on Packers Fish Loop?
- No e-bike class (1, 2 or 3) is designated on Packers Fish Loop in the USFS data.
- How long is Packers Fish Loop?
- Packers Fish Loop measures about 0.7 mi in total, summed across its mapped National Forest System segments.
- What is the surface of Packers Fish Loop?
- USFS data records the tread surface of Packers Fish Loop as native material.
- How difficult is Packers Fish Loop?
- 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 Shasta-Trinity National Forest (USFS trail geometry isn't mapped).
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