Big Bertha Trail
Easy · FernTillamook State Forest, Oregon
No photos yet
Add the first0.6 km0.4 mi
Distance
131 m430 ft
Elevation gain
20m
Est. time
Route
Route type
What to expect on this trail
- Natural surface
- Steep
- Rough underfoot
- Sustained climb
- Hiking
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 52.5% grade, and its steepest climb reaches 55.2%. Source: DEM terrain profile, low confidence.
- Rough underfootestimated
- OpenStreetMap records smoothness "very_horrible" and track type "grade5" on this trail. Source: OpenStreetMap, moderate confidence.
- Sustained climbestimated
- This trail gains 208 m of elevation per kilometre. 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
Big Bertha Trail is a 0.6 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
- 0 m
- High point
- 806 m
- 90th percentile grade
- 52.5%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
Confirm before riding
No authoritative or explicit bicycle-access rule is recorded for this trail.
Estimated MTB suitability
Extreme
80% confidence - score 100/100
- - Terrain: 52.5% 90th-percentile grade and 208 m climbing per km.
- - Surface: dirt.
- - Smoothness: very horrible.
- - Track firmness: grade5.
Source: No access source recorded - checked Aug 2, 2026 - rules v2
Posted signs and current land-manager closures always override OpenTrail.
Report incorrect bike access
Trails nearby
Other routes within about 15 km.
- 1.0 km away
Steampot Trail
Easy · FernTillamook State Forest, Oregon
1.17 km · 25m · ↑ 83 m
- 2.6 km away
Headquarters Grade
Hard · IvyOregon
12.06 km · 3h 0m · ↑ 204 m
- 3.0 km away
Cruiser Creek
Easy · FernTillamook State Forest, Oregon
1.44 km · 25m · ↑ 42 m
- 5.6 km away
Firebreak 2
Easy · FernTillamook State Forest, Oregon
955 m · 15m · ↑ 38 m
- 9.2 km away
Trask River Road West
Easy · FernTillamook State Forest, Oregon
1.71 km · 25m · ↑ 15 m
- 9.8 km away
Hembre Ridge
Easy · FernTillamook State Forest, Oregon
1.47 km · 20m · ↑ 14 m
- 11.2 km away
Schwartz
Easy · FernTillamook State Forest, Oregon
1.41 km · 25m · ↑ 39 m
- 11.3 km away
Fawn Holly
Easy · FernTillamook State Forest, Oregon
2.74 km · 40m · ↑ 18 m
- 11.3 km away
Radio Silence
Moderate · AceTillamook State Forest, Oregon
3.54 km · 1h 5m · ↑ 183 m
- 12.2 km away
Kansas Creek
Easy · FernTillamook State Forest, Oregon
2.42 km · 35m · ↑ 44 m
- 12.8 km away
Yellow Post
Easy · FernTillamook State Forest, Oregon
2.87 km · 1h 30m · ↑ 524 m
- 13.8 km away
Maddogs Pumpkin Patch
Moderate · AceTillamook State Forest, Oregon
6.88 km · 2h 5m · ↑ 315 m
Photos
Location metadata is stripped from uploads automatically. New photos are reviewed by a moderator before they appear publicly.
No photos yet.
Reviews
Create a free account to review this trail.
Frequently asked
How long is Big Bertha Trail?
Big Bertha Trail is 0.6 km (0.4 miles) as a route. Allow roughly 20m at a steady walking pace, not counting stops.
How hard is Big Bertha Trail?
OpenTrail rates it easy. It climbs about 131 m overall, and its steepest sustained stretches run around 53%.
Where is Big Bertha Trail?
Big Bertha 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 Big Bertha 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.