Whitman Mission National Historic Site
Designated - · Bortle 5.0
Dark sky places in WA
Ebey’s Landing National Historical Reserve
Designated - · Bortle 4.0
Klondike Gold Rush National Historical Park
Designated - · Bortle 8.0
Fort Vancouver National Historic Site
Designated - · Bortle 8.0
Lake Roosevelt National Recreation Area
Designated - · Bortle 1.0
San Juan Island National Historical Park
Designated - · Bortle 3.0
Ross Lake National Recreation Area
Designated - · Bortle 1.0
Lake Chelan National Recreation Area
Designated - · Bortle 1.0