Fire Lane 3
A rideable drop off Skyline across the burn that gave Forest Park its whole fire-lane system.
On this trailThe Ride
The Ride
Point downhill from the top and Fire Lane 3 drops under an arbor of hazel to an old orange gate, then falls close to 480 feet over its scant mile to reach Leif Erikson Drive. The upper stretch is a tidy dirt-and-gravel lane; the lower half is the part to respect, narrowing to a rocky, sometimes-steep tread that has thrown plenty of riders off their line. It crosses the Wildwood Trail just shy of milepost 13½ — a foot-only crossing, so it’s a crossing, not a turn — and continues its rocky drop to the bottom, where it meets Leif Erikson Drive at exactly the spot the Maple Trail comes in.
Local Lens: where the fire lanes were born Look around as you descend: this whole slope is regrowth from the 1951 Bonny Slope Burn, the wildfire that finally convinced Portland it had a forest large enough — and close enough to houses — to be dangerous. In its wake the city hired a forester named Bill Keil (1952–1956), and Keil is the man who laid out Forest Park’s numbered fire-lane system through the 1950s: firebreaks and engine-access roads cut so crews could reach a blaze deep in the trees before it reached the neighborhoods. He also led the replanting of the burn. So the very network that lets you ride here is a monument to the fire that came through here. Fire Lane 3 isn’t just near that history — it runs across the scar that started it.
Cyclist note This is one of the rarer legal drops off Skyline into the central park, and it earns its “moderate” honestly on the lower half — the rocky, narrow tread comes at you exactly when you’ve built up speed, so scrub it early and expect to meet climbers and hikers on blind pitches. Most riders take it as the descending leg of the Fire Lane 1-to-Skyline loop, or pair an up-Fire-Lane-2 climb with a down-Fire-Lane-3 drop for a compact ridge circuit closed by Leif Erikson. Note the top: it’s a gated easement through a private hilltop neighborhood with nowhere to park, so this is a lane you arrive at by pedaling, not by driving.
Before you go
The lower tread is the whole caution here. It’s rocky and it gets greasy from October into spring, and unlike the park’s gravel highways it doesn’t shrug off rain — so save it for the drier months when the dirt is firm, and if it’s been pouring, take a gravel route instead. The upper section runs through a private-property easement on Thundering Crest Drive; stay on the trail and don’t go looking for parking that isn’t there.
Ride it as a piece of a bigger day, not as the day itself, and let the history do the quiet work. Somewhere on this slope, three-quarters of a century ago, the forest burned and the city decided that could never be allowed to happen again. You’re coasting down the answer they came up with.
Getting there
One way · from Top: a gated cul-de-sac on Thundering Crest Drive in the Forest Heights neighborhood
- Start
- Top: a gated cul-de-sac on Thundering Crest Drive in the Forest Heights neighborhood — but it's a trail easement through private land with NO public parking, so you don't drive here; reach it via the loop below or climb up from Leif Erikson
- Orientation
- Central park, on the Skyline-to-Leif-Erikson side of the ridge; the bike-legal descending leg of the Fire Lane 1-to-Skyline loop
- Parking
- None at the top — Thundering Crest Drive is a posted, no-parking easement through the Forest Heights community; park instead at a Fire Lane 1 / Leif Erikson access and reach FL3 on foot or wheel
- Other access
- From the bottom on Leif Erikson Drive at the Maple Trail junction, climbing FL3 back toward Skyline
- As the descent in the ~9-mile Fire Lane 1-to-Skyline loop, or a compact up-Fire-Lane-2 / down-Fire-Lane-3 ridge loop via Leif Erikson
- Ends at
- Bottoms out on Leif Erikson Drive right where the Maple Trail comes in; there's no shuttle — you either climb back out or, more often, ride it as the drop inside a longer Skyline-ridge loop
- Transit
- None practical — the top is a gated easement in a private hilltop neighborhood and the bottom sits deep in the park on Leif Erikson; neither is bus-reachable
- Accessibility
- Not accessible — a rocky, narrow, sometimes-steep natural-surface tread with no paved section and no facilities at either end
- Dogs
- leashed
- Best
- year-round; the dirt-and-rock tread firms up in the drier months and turns greasy Oct-spring; keep it a daylight outing — the loop back to the ridge is long and nothing here is lit
Additional resources
- Oregon Hikers Field Guide — Fire Lane 1 to Skyline LoopThe ~9-mile ridge loop that uses Fire Lane 3 as its descent, turn by turn.
- Oregon Hikers Field Guide — Fire Lane 3 EntranceThe Thundering Crest top: the easement, the gate, and how to find it.
- Forest Park Conservancy — Park facts & use guidelinesWhich fire lanes are open to bikes and horses, and the shared-use rules.