Forest Road 3645
Hard · IvyMalheur National Forest, Oregon
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Add the first14.9 km9.2 mi
Distance
422 m1385 ft
Elevation gain
4h 0m
Est. time
Route
Route type
What to expect on this trail
- Steep
- Rolling
- 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 39.0%. Source: DEM terrain profile, high confidence.
- Rollingestimated
- The grade varies by 9.2 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.
Ivy's Peak Challenge Steep, long, or rough. Experienced hikers will love it.
About this trail
Forest Road 3645 is a 14.9 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
Loading forecast…
Elevation profile
Terrain sampled every 35 m from public elevation data.
- Descent
- 392 m
- High point
- 1643 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 34/100
- - Terrain: 15.0% 90th-percentile grade and 28 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.
- Forest Road 6524.3 km · 2.7 mi · Malheur National ForestModerate · Ace
- Forest Road 2733.7 km · 2.3 mi · Malheur National ForestModerate · Ace
- Forest Road 5652.8 km · 1.8 mi · Malheur National ForestEasy · Fern
- Forest Road 36202.7 km · 1.7 mi · Malheur National ForestEasy · Fern
- Forest Road 6011.5 km · 0.9 mi · Malheur National ForestEasy · Fern
Trails nearby
Other routes within about 15 km.
- 2.3 km away
Tinker Bell Trail
Hard · IvyMalheur National Forest, Oregon
5.01 km · 1h 10m · ↑ 37 m
- 2.9 km away
Lake Butte Trail
Hard · IvyMalheur National Forest, Oregon
4.95 km · 1h 10m · ↑ 18 m
- 3.6 km away
Hook Trail
Hard · IvyMalheur National Forest, Oregon
790 m · 20m · ↑ 78 m
- 3.6 km away
Porcupine Spring Trail
Hard · IvyMalheur National Forest, Oregon
4.30 km · 1h 0m · ↑ 28 m
- 4.0 km away
Nipple Butte Trail
Moderate · AceMalheur National Forest, Oregon
4.60 km · 1h 15m · ↑ 125 m
- 4.2 km away
Deadhead Trail
Hard · IvyMalheur National Forest, Oregon
1.42 km · 20m · ↑ 23 m
- 4.4 km away
Pumphouse Trail
Easy · FernMalheur National Forest, Oregon
2.67 km · 45m · ↑ 87 m
- 4.5 km away
Phlo Trail
Hard · IvyMalheur National Forest, Oregon
1.06 km · 20m · ↑ 79 m
- 4.5 km away
Magone Lake Trail
Easy · FernMalheur National Forest, Oregon
2.81 km · 40m · ↑ 17 m
- 4.6 km away
Bert's Trail
Hard · IvyMalheur National Forest, Oregon
2.76 km · 40m · ↑ 54 m
- 4.7 km away
EZ Street Trail
Hard · IvyMalheur National Forest, Oregon
2.08 km · 30m · ↑ 32 m
- 4.9 km away
Magone Slide Trail
Hard · IvyMalheur National Forest, Oregon
903 m · 20m · ↑ 63 m
Photos
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Frequently asked
How long is Forest Road 3645?
Forest Road 3645 is 14.9 km (9.2 miles) as a route. Allow roughly 4h 0m at a steady walking pace, not counting stops.
How hard is Forest Road 3645?
OpenTrail rates it hard. It climbs about 422 m overall, and its steepest sustained stretches run around 15%.
Where is Forest Road 3645?
Forest Road 3645 is in Malheur 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 3645?
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.