National Forest Development 4510-021
Easy · FernMount Hood National Forest, Oregon
No photos yet
Add the first1.6 km1.0 mi
Distance
169 m554 ft
Elevation gain
40m
Est. time
Route
Route type
- No bicycles
What to expect on this trail
- Steep
- Sustained climb
- Hiking
How these were worked out
- Steepestimated
- Nine tenths of this trail is at or below a 17.3% grade, and its steepest climb reaches 85.7%. Source: DEM terrain profile, low confidence.
- Sustained climbestimated
- This trail gains 108 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
National Forest Development 4510-021 is a 1.6 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
- 1211 m
- 90th percentile grade
- 17.3%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
prohibited
A general access restriction applies and no bicycle-specific permission overrides it.
Estimated MTB suitability
Moderate
35% confidence - score 45/100
- - Terrain: 17.3% 90th-percentile grade and 108 m climbing per km.
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.
- 900 m away
45-180 Spur
Easy · FernOregon
1.75 km · 25m · ↑ 6 m
- 1.2 km away
National Forest Development 4510-164
Easy · FernOregon
968 m · 15m · ↑ 0 m
- 1.8 km away
National Forest Development 4510-018
Easy · FernOregon
603 m · 10m · ↑ 0 m
- 2.2 km away
National Forest Development 4510-160
Easy · FernMount Hood National Forest, Oregon
2.33 km · 35m · ↑ 18 m
- 2.8 km away
National Forest Development 4510-150
Moderate · AceMount Hood National Forest, Oregon
3.23 km · 45m · ↑ 17 m
- 3.1 km away
National Forest Development 4510-130
Moderate · AceMount Hood National Forest, Oregon
4.29 km · 1h 0m · ↑ 44 m
- 3.3 km away
National Forest Development 45-165
Easy · FernOregon
660 m · 10m · ↑ 0 m
- 3.8 km away
National Forest Development 4510-140
Easy · FernOregon
616 m · 10m · ↑ 41 m
- 4.6 km away
Memaloose Lake Trail #515
Easy · FernClackamas Wilderness, Oregon
2.91 km · 40m · ↑ 8 m
- 5.9 km away
Hillockburn Trail #516
Easy · FernClackamas Wilderness, Oregon
2.39 km · 35m · ↑ 36 m
- 8.7 km away
Memaloose and Clackamas Falls
Moderate · AceOregon
4.25 km · 1h 20m · ↑ 227 m
- 11.2 km away
Clakamas River Trail #715
Hard · IvyMount Hood National Forest, Oregon
12.06 km · 3h 25m · ↑ 424 m
Photos
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Frequently asked
How long is National Forest Development 4510-021?
National Forest Development 4510-021 is 1.6 km (1.0 miles) as a route. Allow roughly 40m at a steady walking pace, not counting stops.
How hard is National Forest Development 4510-021?
OpenTrail rates it easy. It climbs about 169 m overall, and its steepest sustained stretches run around 17%.
Where is National Forest Development 4510-021?
National Forest Development 4510-021 is in Mount Hood National Forest, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at National Forest Development 4510-021?
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 National Forest Development 4510-021?
Bicycles are not permitted, according to OpenStreetMap contributors. Legal access and how rideable the surface actually is are tracked separately on this page.