Gravelle Brothers Trail
Moderate · AceTillamook State Forest, Oregon
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Add the first4.5 km2.8 mi
Distance
145 m476 ft
Elevation gain
1h 15m
Est. time
Route
Route type
- Bikes allowed
What to expect on this trail
- Natural surface
- Steep
- Rolling
- Hiking
- Biking
How these were worked out
- Natural surfacerecorded
- OpenStreetMap records the surface of this trail as "dirt". Source: OpenStreetMap, high confidence.
- Steepestimated
- Nine tenths of this trail is at or below a 16.6% grade, and its steepest climb reaches 22.0%. Source: DEM terrain profile, moderate confidence.
- Rollingestimated
- The grade varies by 10.6 percentage points along the route rather than climbing steadily. Source: DEM terrain profile, moderate confidence.
Biking is listed because the access rules record an explicit permission — see the bike section below for its authority. It is never inferred from the terrain.
Ace's Active Trek A real workout with honest climbing — pack water and snacks.
About this trail
Gravelle Brothers Trail is a 4.5 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
Loading forecast…
Elevation profile
Terrain sampled every 35 m from public elevation data.
- Descent
- 137 m
- High point
- 534 m
- 90th percentile grade
- 16.6%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
allowed
Every imported segment carries an explicit bicycle permission.
Estimated MTB suitability
Difficult
53% confidence - score 58/100
- - Terrain: 16.6% 90th-percentile grade and 32 m climbing per km.
- - Surface: dirt.
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.
- Wilson River Wagon Road Trail6.5 km · 4.1 mi · Tillamook State ForestModerate · Ace
- Storey Burn Trail6.2 km · 3.9 mi · Tillamook State ForestModerate · Ace
- Elliott Creek Trail4.8 km · 3.0 mi · Tillamook State ForestModerate · Ace
- Nels Rogers Trail3.6 km · 2.2 mi · Tillamook State ForestModerate · Ace
- Gravelle Brothers Trail2.3 km · 1.5 mi · Tillamook State ForestEasy · Fern
- Wilson River Wagon Road Trail2.0 km · 1.2 mi · Tillamook State ForestEasy · Fern
- K Thumb1.1 km · 0.7 mi · Tillamook State ForestEasy · Fern
- Gravelle Brothers Trail1.1 km · 0.7 mi · Tillamook State ForestEasy · Fern
Trails nearby
Other routes within about 15 km.
- 300 m away
Gales Creek Trail
Hard · IvyTillamook State Forest, Oregon
18.76 km · 5h 25m · ↑ 748 m
- 350 m away
Roger's Camp Trail
Moderate · AceTillamook State Forest, Oregon
5.97 km · 1h 35m · ↑ 167 m
- 700 m away
Sickter Lars Trail
Easy · FernTillamook State Forest, Oregon
2.50 km · 40m · ↑ 75 m
- 1.0 km away
Nels Rogers Trail
Easy · FernTillamook State Forest, Oregon
1.32 km · 20m · ↑ 30 m
- 1.2 km away
Happy Meal
Easy · FernTillamook State Forest, Oregon
1.83 km · 30m · ↑ 69 m
- 1.2 km away
Storey Burn Trail
Moderate · AceTillamook State Forest, Oregon
3.12 km · 1h 5m · ↑ 247 m
- 1.2 km away
Back to Back
Hard · IvyTillamook State Forest, Oregon
9.46 km · 2h 45m · ↑ 391 m
- 1.3 km away
University Fire Power
Easy · FernTillamook State Forest, Oregon
1.42 km · 25m · ↑ 61 m
- 1.7 km away
Fire Break One Trail
Easy · FernTillamook State Forest, Oregon
813 m · 10m · ↑ 0 m
- 1.8 km away
Jeep Trail
Moderate · AceTillamook State Forest, Oregon
4.93 km · 1h 40m · ↑ 367 m
- 1.8 km away
Crooked Bridge Trail
Easy · FernTillamook State Forest, Oregon
2.42 km · 35m · ↑ 25 m
- 2.1 km away
Powderhouse Loop
Easy · FernTillamook State Forest, Oregon
2.96 km · 50m · ↑ 87 m
Photos
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Frequently asked
How long is Gravelle Brothers Trail?
Gravelle Brothers Trail is 4.5 km (2.8 miles) as a route. Allow roughly 1h 15m at a steady walking pace, not counting stops.
How hard is Gravelle Brothers Trail?
OpenTrail rates it moderate. It climbs about 145 m overall, and its steepest sustained stretches run around 17%.
Where is Gravelle Brothers Trail?
Gravelle Brothers Trail is in Tillamook State Forest, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at Gravelle Brothers 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 Gravelle Brothers Trail?
Bicycles are permitted, according to OpenStreetMap contributors. Legal access and how rideable the surface actually is are tracked separately on this page.