Forest Road 1820
Moderate · AceBull Run Watershed Management Unit, Oregon
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Add the first6.1 km3.8 mi
Distance
361 m1184 ft
Elevation gain
1h 55m
Est. time
Route
Route type
- No bicycles
What to expect on this trail
- Moderate climbs
- Hiking
- Running
How these were worked out
- Moderate climbsestimated
- Nine tenths of this trail is at or below a 12.8% grade, which is steady work rather than scrambling. 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 1820 is a 6.1 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
- 1117 m
- 90th percentile grade
- 12.8%
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 32/100
- - Terrain: 12.8% 90th-percentile grade and 59 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.
- 3.3 km away
Horseshoe Ridge Trail #774
Hard · IvyMount Hood National Forest, Oregon
8.13 km · 1h 55m · ↑ 50 m
- 3.3 km away
Sandy River Trail #770
Moderate · AceMount Hood Wilderness, Oregon
5.51 km · 1h 35m · ↑ 219 m
- 3.7 km away
Cast Creek Trail #773
Hard · IvyMount Hood Wilderness, Oregon
8.06 km · 1h 55m · ↑ 69 m
- 5.4 km away
Zigzag Mountain Trail #775
Hard · IvyMount Hood Wilderness, Oregon
20.43 km · 7h 20m · ↑ 1675 m
- 6.5 km away
Castle Canyon Trail #765
Easy · FernMount Hood Wilderness, Oregon
1.26 km · 45m · ↑ 296 m
- 6.7 km away
Burnt Lake Trail #772
Hard · IvyMount Hood Wilderness, Oregon
12.02 km · 3h 40m · ↑ 586 m
- 6.9 km away
West Zigzag Trail #789
Moderate · AceMount Hood Wilderness, Oregon
3.58 km · 55m · ↑ 62 m
- 7.0 km away
PCT - Oregon Section G
Hard · IvyBull Run Watershed Management Unit, Oregon
86.23 km · 23h 15m · ↑ 2464 m
- 7.0 km away
Road 19 Trail #775B
Easy · FernMount Hood National Forest, Oregon
1.19 km · 15m · ↑ 5 m
- 7.3 km away
Cast Lake Trail #796
Easy · FernMount Hood Wilderness, Oregon
1.52 km · 25m · ↑ 50 m
- 7.4 km away
Ramona Falls Trail #797
Moderate · AceMount Hood Wilderness, Oregon
2.85 km · 55m · ↑ 190 m
- 7.6 km away
Hunchback Trail #793
Hard · IvySalmon-Huckleberry Wilderness, Oregon
14.70 km · 5h 35m · ↑ 1404 m
Photos
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Frequently asked
How long is Forest Road 1820?
Forest Road 1820 is 6.1 km (3.8 miles) as a route. Allow roughly 1h 55m at a steady walking pace, not counting stops.
How hard is Forest Road 1820?
OpenTrail rates it moderate. It climbs about 361 m overall, and its steepest sustained stretches run around 13%.
Where is Forest Road 1820?
Forest Road 1820 is in Bull Run Watershed Management Unit, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at Forest Road 1820?
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 Forest Road 1820?
Bicycles are not permitted, according to OpenStreetMap contributors. Legal access and how rideable the surface actually is are tracked separately on this page.