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California
3.4 mi
Distance
1,648 ft
Gain
We won't guess. Here is exactly what we do and don't know.
What we do know
Inside Angeles 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.
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Why you'll love it
Merrill (Upper)
AI-suggested draft · review before you go
No permit or access details on file for this trail — check with the local land manager before you go.
Merrill Upper is a moderately challenging day hike featuring significant elevation gain over a relatively short distance, making it an excellent workout for hikers seeking mountain views and alpine terrain. The trail climbs steadily through mixed forest and open slopes, rewarding effort with expansive vistas of the surrounding peaks and valleys. This is an ideal choice for intermediate hikers looking to build endurance while experiencing California's high country.
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