Forest Road 4621
Moderate · AceMount Hood National Forest, Oregon
No photos yet
Add the first6.6 km4.1 mi
Distance
65 m213 ft
Elevation gain
1h 35m
Est. time
Route
Route type
What to expect on this trail
- Moderate climbs
- Rolling
- Hiking
- Running
How these were worked out
- Moderate climbsestimated
- Nine tenths of this trail is at or below a 9.7% grade, which is steady work rather than scrambling. Source: DEM terrain profile, moderate confidence.
- Rollingestimated
- The grade varies by 8.2 percentage points along the route rather than climbing steadily. Source: DEM terrain profile, moderate 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.
Ace's Active Trek A real workout with honest climbing — pack water and snacks.
About this trail
Forest Road 4621 is a 6.6 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
- 148 m
- High point
- 670 m
- 90th percentile grade
- 9.7%
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
Easy
35% confidence - score 21/100
- - Terrain: 9.7% 90th-percentile grade and 10 m climbing per km.
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
Connecting trails
Trails whose path meets this one — plan a longer route or a loop.
Trails nearby
Other routes within about 15 km.
- 2.5 km away
Riverside Trail #723
Moderate · AceMount Hood National Forest, Oregon
6.24 km · 1h 30m · ↑ 64 m
- 3.0 km away
5420 - 300 Spur
Easy · FernMount Hood National Forest, Oregon
1.65 km · 20m · ↑ 0 m
- 3.0 km away
5420 - 290 Spur
Easy · FernMount Hood National Forest, Oregon
1.21 km · 25m · ↑ 73 m
- 3.4 km away
5420 - 033 Spur
Easy · FernMount Hood National Forest, Oregon
1.02 km · 15m · ↑ 0 m
- 3.5 km away
Alder Flat Trail #574
Easy · FernMount Hood National Forest, Oregon
1.36 km · 20m · ↑ 0 m
- 5.9 km away
Clakamas River Trail #715
Hard · IvyMount Hood National Forest, Oregon
12.06 km · 3h 25m · ↑ 424 m
- 5.9 km away
Clackamas River Trail #715
Hard · IvyMount Hood National Forest, Oregon
12.06 km · 3h 25m · ↑ 424 m
- 6.3 km away
6321-120 Spur
Easy · FernMount Hood National Forest, Oregon
1.46 km · 25m · ↑ 40 m
- 7.3 km away
Cripple Creek Trail #702
Moderate · AceMount Hood National Forest, Oregon
5.44 km · 2h 25m · ↑ 703 m
- 8.7 km away
Rimrock Trail #704
Moderate · AceRoaring River Wilderness, Oregon
4.26 km · 1h 15m · ↑ 173 m
- 8.7 km away
Skookum Lake Trail #542
Easy · FernMount Hood National Forest, Oregon
2.30 km · 35m · ↑ 28 m
- 9.0 km away
Thunder Mountain Trail #543
Easy · FernMount Hood National Forest, Oregon
2.24 km · 1h 0m · ↑ 287 m
Photos
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Frequently asked
How long is Forest Road 4621?
Forest Road 4621 is 6.6 km (4.1 miles) as a route. Allow roughly 1h 35m at a steady walking pace, not counting stops.
How hard is Forest Road 4621?
OpenTrail rates it moderate. It climbs about 65 m overall, and its steepest sustained stretches run around 10%.
Where is Forest Road 4621?
Forest Road 4621 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 Forest Road 4621?
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.