Mirror Lakes Trail #20
Moderate · AceThree Sisters Wilderness, Oregon
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Add the first5.3 km3.3 mi
Distance
169 m554 ft
Elevation gain
1h 30m
Est. time
Route
Route type
What to expect on this trail
- Gently graded
- Hiking
- Running
How these were worked out
- Gently gradedestimated
- Nine tenths of this trail is at or below a 7.8% grade, so the climbing is easy going throughout. 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
Mirror Lakes Trail #20 is a 5.3 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
- 0 m
- High point
- 1826 m
- 90th percentile grade
- 7.8%
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
Easy
35% confidence - score 19/100
- - Terrain: 7.8% 90th-percentile grade and 32 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.
- PCT - Oregon Section E118.7 km · 73.7 mi · Three Sisters WildernessHard · Ivy
- Nash Lake Trail #352712.6 km · 7.8 mi · Three Sisters WildernessHard · Ivy
- Elk Devils Trail #129.0 km · 5.6 mi · Three Sisters WildernessHard · Ivy
- Elk Devils Trail #128.8 km · 5.5 mi · Three Sisters WildernessHard · Ivy
- Pacific Crest Trail8.2 km · 5.1 mi · Three Sisters WildernessHard · Ivy
- Pacific Crest Trail3.0 km · 1.9 mi · Three Sisters WildernessModerate · Ace
Trails nearby
Other routes within about 15 km.
- less than 100 m away
Sink Creek Trail #20.1
Moderate · AceDeschutes National Forest, Oregon
3.09 km · 50m · ↑ 108 m
- 700 m away
Katsuk Pond Trail #13
Moderate · AceDeschutes National Forest, Oregon
6.19 km · 1h 35m · ↑ 133 m
- 1.9 km away
Quinn Creek Trail #1
Moderate · AceDeschutes National Forest, Oregon
4.89 km · 1h 15m · ↑ 98 m
- 2.0 km away
Quinn Springs Trail #13.1
Easy · FernDeschutes National Forest, Oregon
1.18 km · 15m · ↑ 5 m
- 2.4 km away
South Sister Climber Trail
Hard · IvyThree Sisters Wilderness, Oregon
9.90 km · 4h 40m · ↑ 1474 m
- 2.4 km away
Devil's Lake Trail #6.1
Easy · FernDeschutes National Forest, Oregon
971 m · 15m · ↑ 5 m
- 2.4 km away
Apaloosa Trail #13.2
Easy · FernDeschutes National Forest, Oregon
2.55 km · 45m · ↑ 105 m
- 2.5 km away
South Sister Climber Trail #36
Hard · IvyThree Sisters Wilderness, Oregon
9.27 km · 4h 30m · ↑ 1474 m
- 3.0 km away
Wickiup Plains trail #12.1
Easy · FernThree Sisters Wilderness, Oregon
2.68 km · 35m · ↑ 16 m
- 3.1 km away
Ray Atkeson Memorial Trail
Moderate · AceDeschutes National Forest, Oregon
3.94 km · 55m · ↑ 11 m
- 3.6 km away
Moraine Lake Trail #17.1
Moderate · AceThree Sisters Wilderness, Oregon
5.95 km · 1h 40m · ↑ 185 m
- 3.6 km away
Le Conte Crater Trail #14.3
Easy · FernThree Sisters Wilderness, Oregon
2.08 km · 35m · ↑ 51 m
Photos
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Frequently asked
How long is Mirror Lakes Trail #20?
Mirror Lakes Trail #20 is 5.3 km (3.3 miles) as a route. Allow roughly 1h 30m at a steady walking pace, not counting stops.
How hard is Mirror Lakes Trail #20?
OpenTrail rates it moderate. It climbs about 169 m overall, and its steepest sustained stretches run around 8%.
Where is Mirror Lakes Trail #20?
Mirror Lakes Trail #20 is in Three Sisters Wilderness, Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at Mirror Lakes Trail #20?
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.