Campsite Odds

Booking odds · December

Window Rock Cabin in December: How Hard Is It to Book?

Window Rock Cabin · MT · Custer Gallatin National Forest

The verdict

Lottery-hard

Booking difficulty 10 out of 10. Gone within minutes of release. Bring a plan B.

Sells out in daysBased on 3 years of reservation data

Popular December dates usually sell out within a few days of release.

Window Rock Cabin in December scores 10 out of 10 for booking difficulty — lottery-hard. Gone within minutes of release. Bring a plan B.

Across the last 3 years of reservation history, the typical December booking was locked in about 142 days before arrival, with the campground running roughly 108% full that month. The lightest arrival day is Tuesday, so shifting to a midweek start is the single easiest way to improve your odds.

Lead time

How far ahead people book

Same day: 0% of bookingsSame day1–3d: 0% of bookings1–3d4–7d: 0% of bookings4–7d1–2wk: 2% of bookings1–2wk2–4wk: 6% of bookings6%2–4wk1–2mo: 12% of bookings12%1–2mo2–3mo: 14% of bookings14%2–3mo3–6mo: 30% of bookings30%3–6mo6mo+: 36% of bookings36%6mo+Median booking lead time: 142 days ahead
Demand split

Weekend vs. weekday demand

Weekend (Fri–Sat)Weekday (Sun–Thu)

Best odds: arrivals are lightest on Tuesday in December. A midweek arrival is your easiest booking.

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Booking window · December 2026

When December reservations open

Reservations for Window Rock Cabin in December 2026 operate on a rolling 6-month window releasing at 7:00 AM ET.

December 1 stays open

June 1, 2026

at 7:00 AM ET

Release style

6-Month Rolling Window

Releases daily 6 months ahead at 7:00 AM ET

Campsites for December 1, 2026 become bookable on June 1, 2026 at 7:00 AM ET. Each subsequent date throughout December releases day-by-day exactly 6 months prior to arrival.

Facility note: Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.

Plan B

Easier nearby options in December

If your dates are flexible, these nearby campgrounds are typically easier to book.

FAQ

Window Rock Cabin in December: common questions

How hard is it to book Window Rock Cabin in December?
Window Rock Cabin rates 10 out of 10 for December — Lottery-hard. Gone within minutes of release. Bring a plan B.
How far in advance should I book Window Rock Cabin for December?
The typical December reservation was made about 142 days before arrival, so plan to book as early as your dates allow.
When do December reservations open for Window Rock Cabin?
Reservations for Window Rock Cabin in December 2026 open on a rolling 6-month window. Sites for December 1 become bookable on June 1, 2026 at 7:00 AM ET, with each subsequent day releasing day-by-day 6 months ahead.
What is the best day to arrive at Window Rock Cabin in December?
Arrivals are lightest on Tuesday. A midweek arrival is usually the easiest booking.

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