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Get alerted the second a Yosemite campsite opens

CampSnag monitors Upper Pines and Lower Pines on recreation.gov every 90 seconds. The moment a cancellation drops — you get a text with a one-tap booking link.

Set Up Yosemite Alert →
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Yosemite uses a 5-month rolling window (not 6) and releases new dates at 7am PT daily — not midnight. Peak summer sites vanish in under 60 seconds at release. Cancellations are your best shot.
Booking system

How Yosemite reservations work

Yosemite Valley campgrounds are the hardest campsites to book in the entire National Park System. But cancellations happen every day — and CampSnag catches them the second they appear.

Daily Release Schedule

7:00 AM PT
New dates drop — exactly 5 months from today become bookable
7:00–7:05
Peak competition — summer Valley sites gone in under 2 minutes
All day
Cancellations trickle in — CampSnag catches these instantly
1–3 days before
Last-minute cancellations spike — best window for late bookers
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Booking Window
Rolling 5 months
New dates at 7am PT daily
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How fast sites go
Under 2 minutes
Summer weekends at Upper Pines — under 60 seconds
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Best cancellation window
1–3 days before
Last-minute drops are the most reliable
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CampSnag scan rate
Every 90 seconds
Day, night, weekends, holidays
Strategy

Tips to maximize your chances

Yosemite is the hardest campground in America to book — but with the right approach, you can land a site even in peak season.

1
Target the 1–3 day window
This is your single best opportunity. As trip dates approach, people who booked 5 months ago realize they can't make it. Cancellations spike in the 72 hours before a reservation. CampSnag catches these the second they drop.
2
Add date flexibility
When setting up your CampSnag alert, add 1–3 days of flexibility on either side of your target dates. This dramatically increases the surface area CampSnag monitors and your odds of getting notified.
3
Monitor both campgrounds
Upper Pines has 236 sites, Lower Pines has 74 — both are in the Valley. Setting alerts for both doubles your chances. Lower Pines sits right on the Merced River and is often slightly less competitive.
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Shoulder season tip: October and April/early May have dramatically more available sites than the summer peak — and the Valley is stunning in fall foliage and late spring. If your schedule is flexible, shoulder season + a CampSnag alert is nearly guaranteed to get you in.
Campgrounds monitored

Where CampSnag watches at Yosemite

We monitor both Valley campgrounds around the clock — every 90 seconds. You get the text, you tap the link, you book.

Upper Pines
Extreme
236 sites · The largest and most central Yosemite Valley campground
Flush Toilets Running Water Food Storage Shuttle Access Yosemite Village nearby
The flagship Yosemite campground — central location with shuttle access and all Valley services nearby. The most sought-after campground in the National Park System. In summer, expect sites to vanish within 60 seconds of the 7am release. Let CampSnag catch the cancellations.
Lower Pines
Extreme
74 sites · Quieter, riverside, slightly under the radar
Flush Toilets Running Water Merced Riverfront Food Storage Shuttle Access
Lower Pines sits right on the Merced River — some sites have direct river access. Smaller and slightly less frantic than Upper Pines. If you're flexible about which campground, monitoring both doubles your chances of landing a site.
Ready?

Get the first text.
Book the campsite.

CampSnag watches Yosemite every 90 seconds. The second Upper Pines or Lower Pines has an opening — you'll know before anyone else.

Set Up Yosemite Alert →
Scans every 90 seconds
Instant SMS
One-tap booking link
7-day free trial
No card required