Thornbrook Trail
Easy · FernThornbrook Woods Natural Area, Oregon
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Add the first0.8 km0.5 mi
Distance
22 m72 ft
Elevation gain
15m
Est. time
Route
Route type
- Bikes: conditions apply
What to expect on this trail
- Paved
- Moderate climbs
- Rolling
- Hiking
- Running
How these were worked out
- Pavedrecorded
- OpenStreetMap records the surface of this trail as "paved". Source: OpenStreetMap, high confidence.
- Moderate climbsestimated
- Nine tenths of this trail is at or below a 13.8% grade, which is steady work rather than scrambling. Source: DEM terrain profile, low confidence.
- Rollingestimated
- The grade varies by 15.8 percentage points along the route rather than climbing steadily. Source: DEM terrain profile, low confidence.
Biking is not listed. That means no explicit permission is recorded, which is not the same as a prohibition — see the bike section below.
Fern's Friendly Walk A gentle wander — great for kids, dogs, and wildflower stops.
About this trail
Thornbrook Trail is a 0.8 km trail in Oregon. Route imported from OpenStreetMap (© OpenStreetMap contributors, ODbL); community descriptions, photos, and condition reports welcome.
Play the route
Fly the trail end to end, with the climb as it comes.
Conditions
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Elevation profile
Terrain sampled every 35 m from public elevation data.
- Descent
- 17 m
- High point
- 114 m
- 90th percentile grade
- 13.8%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
conditional
Bicycle permission is explicit on part of the route; remaining segments are undocumented.
Confirm access on undocumented segments before riding.
Estimated MTB suitability
Moderate
53% confidence - score 33/100
- - Terrain: 13.8% 90th-percentile grade and 27 m climbing per km.
- - Surface: paved.
Source: Explicit OpenStreetMap access tags - OpenStreetMap contributors - checked Aug 2, 2026 - rules v2
View access evidencePosted signs and current land-manager closures always override OpenTrail.
Report incorrect bike access
Connecting trails
Trails whose path meets this one — plan a longer route or a loop.
Trails nearby
Other routes within about 15 km.
- 450 m away
Westside Trail
Hard · IvyOregon
15.88 km · 3h 50m · ↑ 204 m
- 450 m away
Burntwood Powerline Park Trail (Westside Trail)
Easy · FernBurntwood Park, Oregon
521 m · 5m · ↑ 0 m
- 500 m away
Old Westside Powerline Trail
Easy · FernOregon
562 m · 10m · ↑ 5 m
- 700 m away
Hart Meadows Park Trail (Westside Trail)
Easy · FernOregon
637 m · 10m · ↑ 14 m
- 950 m away
Summercrest Park Trail
Easy · FernSummercrest Park, Oregon
775 m · 10m · ↑ 5 m
- 1.2 km away
South Johnson Creek Trail
Easy · FernLowami Hart Woods Natural Area, Oregon
682 m · 10m · ↑ 0 m
- 1.3 km away
Farmington Bikeway
Easy · FernOregon
1.82 km · 25m · ↑ 0 m
- 2.3 km away
Southwest Bayberry Drive
Easy · FernOregon
1.31 km · 20m · ↑ 42 m
- 2.3 km away
Southwest 194th Terrace
Easy · FernOregon
714 m · 15m · ↑ 35 m
- 2.4 km away
Channing Heights Mini-Park Trail
Easy · FernChanning Heights Park, Oregon
512 m · 5m · ↑ 0 m
- 2.4 km away
Southwest Crisp Drive
Easy · FernOregon
962 m · 15m · ↑ 8 m
- 2.5 km away
Beaverton Wetlands Trail
Easy · FernBeaverton Creek Wetlands Natural Area, Oregon
964 m · 15m · ↑ 0 m
Photos
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Frequently asked
How long is Thornbrook Trail?
Thornbrook Trail is 0.8 km (0.5 miles) as a route. Allow roughly 15m at a steady walking pace, not counting stops.
How hard is Thornbrook Trail?
OpenTrail rates it easy. It climbs about 22 m overall, and its steepest sustained stretches run around 14%.
Where is Thornbrook Trail?
Thornbrook Trail is in Thornbrook Woods Natural Area, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at Thornbrook Trail?
No parking area is mapped within 1.5 km of this route in OpenStreetMap. That is not the same as there being none — check local access rules before you go.
Can you bike Thornbrook Trail?
Bicycle access is conditional, according to OpenStreetMap contributors. Legal access and how rideable the surface actually is are tracked separately on this page.