S420
Moderate · AceOregon
No photos yet
Add the first4.8 km3.0 mi
Distance
346 m1135 ft
Elevation gain
1h 40m
Est. time
Route
Route type
What to expect on this trail
- Steep
- Hiking
How these were worked out
- Steepestimated
- Nine tenths of this trail is at or below a 15.0% grade, and its steepest climb reaches 34.0%. 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
S420 is a 4.8 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
- 14 m
- High point
- 1505 m
- 90th percentile grade
- 15.0%
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
35% confidence - score 38/100
- - Terrain: 15.0% 90th-percentile grade and 72 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.
- 2.0 km away
R430
Easy · FernOregon
1.58 km · 20m · ↑ 0 m
- 2.6 km away
R370
Moderate · AceOregon
3.61 km · 55m · ↑ 59 m
- 2.7 km away
R300
Moderate · AceOregon
5.79 km · 1h 35m · ↑ 158 m
- 2.9 km away
S401
Easy · FernOregon
1.91 km · 30m · ↑ 38 m
- 3.1 km away
S402
Easy · FernOregon
801 m · 20m · ↑ 114 m
- 3.2 km away
S403
Easy · FernOregon
935 m · 25m · ↑ 104 m
- 4.7 km away
S440
Easy · FernOregon
1.42 km · 30m · ↑ 96 m
- 4.9 km away
S130
Easy · FernOregon
2.12 km · 45m · ↑ 150 m
- 4.9 km away
S200
Hard · IvyOregon
15.95 km · 5h 0m · ↑ 864 m
- 5.1 km away
S250
Easy · FernOregon
823 m · 10m · ↑ 0 m
- 5.3 km away
R431
Moderate · AceOregon
6.37 km · 1h 55m · ↑ 287 m
- 5.4 km away
S120
Easy · FernOregon
1.54 km · 25m · ↑ 49 m
Photos
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Reviews
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Frequently asked
How long is S420?
S420 is 4.8 km (3.0 miles) as a route. Allow roughly 1h 40m at a steady walking pace, not counting stops.
How hard is S420?
OpenTrail rates it moderate. It climbs about 346 m overall, and its steepest sustained stretches run around 15%.
Where is S420?
S420 is in Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at S420?
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.