Forest Road 4666-450
Moderate · AceDeschutes National Forest, Oregon
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Add the first5.2 km3.2 mi
Distance
174 m571 ft
Elevation gain
1h 25m
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 14.3% grade, which is steady work rather than scrambling. Source: DEM terrain profile, moderate confidence.
- Rollingestimated
- The grade varies by 9.5 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 4666-450 is a 5.2 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
- 110 m
- High point
- 1887 m
- 90th percentile grade
- 14.3%
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
Moderate
47% confidence - score 40/100
- - Terrain: 14.3% 90th-percentile grade and 34 m climbing per km.
- - Track firmness: grade2.
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.
- 3.3 km away
Maiden Lake Trail #3841
Hard · IvyDeschutes National Forest, Oregon
8.73 km · 2h 15m · ↑ 169 m
- 3.6 km away
Maiden Peak Summit Trail #3841.1
Easy · FernDeschutes National Forest, Oregon
2.80 km · 1h 20m · ↑ 429 m
- 3.6 km away
Crater Butte Trail
Hard · IvyDiamond Peak Wilderness, Oregon
20.71 km · 5h 50m · ↑ 722 m
- 3.6 km away
Pacific Crest Trail
Hard · IvyWillamette National Forest, Oregon
31.05 km · 8h 25m · ↑ 891 m
- 3.6 km away
PCT - Oregon Section E
Hard · IvyThree Sisters Wilderness, Oregon
118.68 km · 30h 50m · ↑ 2661 m
- 4.4 km away
Metolius-Windigo Trail
Hard · IvyDeschutes National Forest, Oregon
93.28 km · 22h 35m · ↑ 1104 m
- 5.2 km away
Maiden Peak Trail #3861
Hard · IvyWillamette National Forest, Oregon
8.19 km · 3h 10m · ↑ 800 m
- 5.3 km away
Skyline Bike Trail #4383
Moderate · AceWillamette National Forest, Oregon
5.43 km · 1h 15m · ↑ 19 m
- 6.4 km away
Fawn Lake Trail #3844.1
Moderate · AceDiamond Peak Wilderness, Oregon
5.35 km · 1h 15m · ↑ 14 m
- 6.6 km away
PCT - Oregon Section D
Hard · IvyUmpqua National Forest, Oregon
95.09 km · 24h 50m · ↑ 2217 m
- 7.2 km away
Whitefish Creek Trail
Hard · IvyDiamond Peak Wilderness, Oregon
18.13 km · 4h 40m · ↑ 363 m
- 7.3 km away
Stag Lake Trail #3844.2
Easy · FernDiamond Peak Wilderness, Oregon
1.03 km · 15m · ↑ 5 m
Photos
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Frequently asked
How long is Forest Road 4666-450?
Forest Road 4666-450 is 5.2 km (3.2 miles) as a route. Allow roughly 1h 25m at a steady walking pace, not counting stops.
How hard is Forest Road 4666-450?
OpenTrail rates it moderate. It climbs about 174 m overall, and its steepest sustained stretches run around 14%.
Where is Forest Road 4666-450?
Forest Road 4666-450 is in Deschutes 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 4666-450?
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.