Mammoth Lakes Pack Outfit
Hiking business nearby (~15 mi away) — hasn't claimed their Roamze page yet
Isberg Trail
California
California
Free — you'll pick up right here.
2.4 mi
Distance
1,444 ft
Gain
1h 23m
Time
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
2 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
Through-trail
Out & back
Here's your day, mapped
Isberg Trail
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
- 2.4 mi
- Elevation gain
- 1,444 ft
- Elevation loss
- 1,444 ft
- Highest point
- 8,049 ft
- Lowest point
- 7,142 ft
More about this trail ↓
Photos
Directions & GPX
Permits & access
- Managing agency
- Forest Service
About this trail
Isberg Trail is a 4.8-mile out-and-back route in California with 1,444 feet of elevation gain and loss. The trail reaches a maximum elevation of 8,049 feet.
Facts about this trail
The climb
- Starts at
- 7,142 ft
- High point
- 8,049 ft
- Total climbing
- 1,444 ft
- Total descent
- 1,444 ft
- Steepest stretch
- 15% grade around mile 1.5 on the way out
- Length (round trip)
- 4.8 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 Mammoth Lakes Rs, CA weather station, 18 mi away. High / low in °F.
- Jan41° high17° low
- Feb41° high18° low
- Mar45° high22° low
- Apr51° high27° low
- May60° high35° low
- Jun70° high42° low
- Jul78° high49° low
- Aug77° high47° low
- Sep71° high40° low
- Oct61° high30° low
- Nov49° high23° low
- Dec41° high17° low
Where it is
- Bass Lake Ranger District · Ranger district
- Sierra National Forest · National forest
- Managed by
- Forest Service
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
- Granite CreekCamping0.6 mi
- MammothMountain biking0.9 mi
- HoleHiking1.3 mi
- Clover MeadowCamping1.6 mi
- West Fork Granite CreekCanoeing3.4 mi
- North Fork San Joaquin RiverCanoeing5.6 mi
- Mammoth PoolRock climbing5.8 mi
- Ritter & MinaretsRock climbing9.8 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
Add to a trip & share
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Map and trail data © OpenStreetMap contributors
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 (~42 mi away) — hasn't claimed their Roamze page yet
Rainbow Pack Outfitters
Hiking business nearby (~46 mi away) — hasn't claimed their Roamze page yet
