01 OLYMPIC NATIONAL PARK
Season
Open year-round, but peak season opens late March and closes late October.
Reservation
Individual campsites are released on a six-month rolling basis, group campsites are released on a 12-month rolling basis.
Advanced reservations are required for group camping and select campgrounds only: Kalaloch and Sol Duc.
Permits and Fees
$30 park entry fee for all RVs.
Paid wilderness permits are required year-round for backpacking or any other overnight stay.
02 MOUNT RAINIER NATIONAL PARK
Season
Open year-round, but peak season opens late May and closes mid-October.
Reservation
Group campsites are released on a 12-month rolling basis.
Permits and Fees
$35 park entry fee for all RVs.
Free backcountry permits are required year-round for backpacking or any other overnight stay.
03 NORTH CASCADES NATIONAL PARK
Season
Open year-round, but peak season opens mid-May and closes late September.
Reservation
Individual campsites are released on a six-month rolling basis, group campsites are released on a 12-month rolling basis.
Permits and Fees
No park entry fee for RVs.
Free backcountry permits are required year-round for backpacking or any other overnight stay.
04 MOUNT ST. HELENS NATIONAL MONUMENT
Season
Open year-round, but peak season opens mid-May and closes early October.
Reservation
Group campsites are released on a 12-month rolling basis.
Permits and Fees
$5 day pass.
Paid backcountry permits are required year-round for backpacking or any other overnight stay.
05 COLVILLE NATIONAL FOREST
Season
Open year-round, but peak season opens early April and closes late October.
Reservation
Reservations are open year-round, can be made six months in advance.
Permits and Fees
$5 day pass.
Paid permits are required for firewood.