The Big Alta 100K — 2027 — Course Map, Elevation Profile & Aid Stations

Course map, elevation profile & surface

Distance

62.5mi

Elev gain

12,998ft

Elev loss

12,939ft

High point

2,388ft

Low point

10ft

Surface

48% gravel

Aid stations as published on the course file

Aid station	Mile	km
START - Fort Baker	0.0	0.0
A AS1 - Rodeo Beach	6.6	10.5
A AS2 - Muir Beach	12.4	20.0
A AS3 - Cardiac Hill	19.6	31.6
A AS4 - Stinson	22.6	36.4
A AS5 - Tam Summit	30.9	49.7
A AS6 - Lagunitas	36.5	58.8
A AS7 - Azalea Hill	39.9	64.1
A AS8 - Fox Hollow	49.0	78.9
A AS9 - Big Rock	53.8	86.6
FINISH - Marinwood Community Ctr	62.5	100.6

Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.

Race director? A look from you is worth more than any import gate: confirm (or correct) this course and it carries a ✓ verified by the race badge everywhere it appears, including the free map embed for your own site — email kris@trailgoat.run.

Nobody from The Big Alta 100K — 2027 has checked this course yet — it’s built from what the race published. Ask them to:Email your race director

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About this course

The Big Alta 100K — 2027 covers 62.5 mi (100.6 km) with 12,998 ft of elevation gain. The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.

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