Campsite Odds

Booking odds · August

Big Larch Campground in August: How Hard Is It to Book?

Big Larch Campground · MT · Lolo National Forest

The verdict

Plan ahead

Booking difficulty 5 out of 10. Books up in the weeks before popular dates. Reserve early.

Sells out in daysBased on 3 years of reservation data

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

Big Larch Campground in August scores 5 out of 10 for booking difficulty — plan ahead. Books up in the weeks before popular dates. Reserve early.

Across the last 3 years of reservation history, the typical August booking was locked in about 36 days before arrival, with the campground running roughly 33% 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: 6% of bookings6%Same day1–3d: 11% of bookings11%1–3d4–7d: 8% of bookings8%4–7d1–2wk: 8% of bookings8%1–2wk2–4wk: 14% of bookings14%2–4wk1–2mo: 15% of bookings15%1–2mo2–3mo: 9% of bookings9%2–3mo3–6mo: 20% of bookings20%3–6mo6mo+: 8% of bookings8%6mo+Median booking lead time: 36 days ahead
Demand split

Weekend vs. weekday demand

Weekend (Fri–Sat)Weekday (Sun–Thu)

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

Booking window · August 2027

When August reservations open

Reservations for Big Larch Campground in August 2027 operate on a rolling 6-month window releasing at 7:00 AM ET.

August 1 stays open

February 1, 2027

at 7:00 AM ET

Release style

6-Month Rolling Window

Releases daily 6 months ahead at 7:00 AM ET

Campsites for August 1, 2027 become bookable on February 1, 2027 at 7:00 AM ET. Each subsequent date throughout August 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.

Fees

How much does it cost to camp at Big Larch Campground?

The nightly fee for individual RV/tent campsites is $20.00 through peak season (Friday before Memorial Day through Labor Day). The nightly fee for group campsites is $50.00 through peak season. The nightly fee for bicycle campsites is $10.00 through peak season. Parking is allowed in the designated parking spur for each campsite only. Vehicles that do not fit must deposit an additional vehicle fee of $5.00 and must park in the day-use area. No parking along roadways. Outside of peak season (Friday before Memorial Day through Labor Day), all campsites will be available free of charge on a first-come, first-serve basis. Day use facilities are free of charge and are open from 6 a.m. - 10 p.m.

Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.

Plan B

Easier nearby options in August

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

SPRING HILL CAMPGROUND

MTPlan ahead

Quartz Flat Campground (MT)

MTEasy

INDIAN TREES CAMPGROUND

MTPlan ahead

FAQ

Big Larch Campground in August: common questions

How hard is it to book Big Larch Campground in August?
Big Larch Campground rates 5 out of 10 for August — Plan ahead. Books up in the weeks before popular dates. Reserve early.
How far in advance should I book Big Larch Campground for August?
The typical August reservation was made about 36 days before arrival, so plan to book as early as your dates allow.
When do August reservations open for Big Larch Campground?
Reservations for Big Larch Campground in August 2027 open on a rolling 6-month window. Sites for August 1 become bookable on February 1, 2027 at 7:00 AM ET, with each subsequent day releasing day-by-day 6 months ahead.
What is the best day to arrive at Big Larch Campground in August?
Arrivals are lightest on Tuesday. A midweek arrival is usually the easiest booking.

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