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Forest Road 4881-121

Moderate · Ace

Mount Hood National Recreation Area, Oregon

Directions

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4.9 km3.0 mi

Distance

255 m837 ft

Elevation gain

1h 30m

Est. time

Route

Route type

What to expect on this trail

  • Natural surface
  • Moderate climbs
  • Rolling
  • Hiking
  • Running
How these were worked out
Natural surfacerecorded
OpenStreetMap records the surface of this trail as "unpaved". Source: OpenStreetMap, high confidence.
Moderate climbsestimated
Nine tenths of this trail is at or below a 10.4% grade, which is steady work rather than scrambling. Source: DEM terrain profile, moderate confidence.
Rollingestimated
The grade varies by 10.2 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 4881-121 is a 4.9 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
59 m
High point
1605 m
90th percentile grade
10.4%
1605 m1476 m1346 m0 m2.4 km4.9 km

Bike access & suitability

Legal permission and physical difficulty are evaluated separately.

Bike access unknown

Legal access

Confirm before riding

No authoritative or explicit bicycle-access rule is recorded for this trail.

Estimated MTB suitability

Moderate

53% confidence - score 44/100

  • - Terrain: 10.4% 90th-percentile grade and 52 m climbing per km.
  • - Surface: unpaved.

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.

Photos

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Frequently asked

How long is Forest Road 4881-121?

Forest Road 4881-121 is 4.9 km (3.0 miles) as a route. Allow roughly 1h 30m at a steady walking pace, not counting stops.

How hard is Forest Road 4881-121?

OpenTrail rates it moderate. It climbs about 255 m overall, and its steepest sustained stretches run around 10%.

Where is Forest Road 4881-121?

Forest Road 4881-121 is in Mount Hood National Recreation Area, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.

Is there parking at Forest Road 4881-121?

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.

Trail data last updated August 2, 2026 · terrain computed July 30, 2026