Cancellation alerts

MAMMOTH PICNIC SHELTERS

We watch every site at MAMMOTH PICNIC SHELTERS 24/7, then email you the moment a cancellation opens up.

42% of weekends booked at top sites·Peak Jun–Aug·2 sites

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Pick your dates, pick the sites you want, we do the watching.

Park favorites

The 2 most popular campsites at MAMMOTH PICNIC SHELTERS

Ranked by how often each site reserves on weekends in peak season (Jun–Aug). Set up an alert and we'll email you on cancellations.

Site G001

Best here

Ranked #1 of 2

Sleeps 60

Site G002

Top pick

Ranked #2 of 2

Sleeps 60

These sites rebook within minutes of being cancelled. Set an alert at MAMMOTH PICNIC SHELTERS and we’ll email you the moment one opens up.

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About this park

The picnic shelters are surrounded by oak, elm, and maple trees in the Green River Valley. The park sits above the labyrinth of underground caves and extends out over rolling hill country.