Mammoth Lakes Pack Outfit
Hiking business nearby (~20 mi away) — hasn't claimed their Roamze page yet
Jackass Lakes
California
California
Free — you'll pick up right here.
1.5 mi
Distance
500 ft
Gain
No verdict for this trail
We won't guess. Here is exactly what we do and don't know.
What we do know
Inside Sierra National Forest
3 managing-area boundaries mapped — agency alerts for them feed this page automatically.
Boundary data
What's missing
No access route mapped
We don't yet know which road reaches this trailhead, so we can't tell you if it's gated.
Nobody's filed a report here yet — be the first.
Why you'll love it
Ansel Adams Wilderness wilderness
Quick trip — under 2 mi
Out & back
Here's your day, mapped
Jackass Lakes
Suggested plan · check conditions before you go
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Meals
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Gear for the day
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Elevation & route
- Distance
- 1.5 mi
- Elevation gain
- 500 ft
- Highest point
- 9,193 ft
- Lowest point
- 8,673 ft
More about this trail ↓
Photos
Directions & GPX
Permits & access
- Managing agency
- Forest Service
- Wilderness area
- Ansel Adams Wilderness
- Surface
- Natural
- Accessibility
- Not an accessible trail (Forest Service accessibility status)
Source for surface, accessibility: USDA Forest Service National Forest System Trails (EDW)
About this trail
Jackass Lakes is a 1.46-mile out-and-back trail in California managed by the Forest Service. The trail gains 554 feet of elevation.
Facts about this trail
The climb
- High point
- 9,193 ft
- Length (round trip)
- 1.5 mi
- Shape
- Out and back
Source: Roamze elevation profile and trail geometry (DEM samples along the mapped route)
When to go
Typical monthly averages (not a forecast) from the Tuolumne Meadows Rs, CA weather station, 24 mi away. High / low in °F.
- Jan41° high13° low
- Feb38° high12° low
- Mar42° high15° low
- Apr45° high22° low
- May54° high27° low
- Jun65° high33° low
- Jul71° high38° low
- Aug70° high36° low
- Sep65° high32° low
- Oct57° high26° low
- Nov47° high20° low
- Dec40° high12° low
Where it is
- Ansel Adams Wilderness · Wilderness
- Bass Lake Ranger District · Ranger district
- Sierra National Forest · National forest
- Managed by
- Forest Service
Source: Wilderness.net boundaries; USFS EDW boundaries; USGS PAD-US 4.1
Conditions
Active alerts for Bass Lake Ranger District as of Oct 9, 2026:
Mammoth Pool Boat Launch Rehabilitation
caution · posted Aug 24, 2026
Mammoth Pool Boat Launch Order Termination
information · posted Aug 24, 2026
Source: USFS forest alerts
Nearby
- Norris LakeHiking0.9 mi
- Lady LakeMountain biking1.6 mi
- BowlerCamping1.7 mi
- Upper ChiquitoCamping3.5 mi
- West Fork Granite CreekCanoeing3.7 mi
- Jackass CreekCanoeing5.1 mi
- Mammoth PoolRock climbing6.4 mi
- Swimming Hole WallRock climbing8.9 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Add to a trip & share
Keep exploring — more trails worth the drive
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Guided trips nearby
Local operatorsoffering guided trips. You book directly with them — Roamze doesn’t take a cut.
View operator
Bishop Pack Outfitters
Hiking business nearby (~45 mi away) — hasn't claimed their Roamze page yet
Rainbow Pack Outfitters
Hiking business nearby (~50 mi away) — hasn't claimed their Roamze page yet
