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Aladdin Valley
 
In the Colville National Forest.
Anacortes
 
A town in Skagit county.
Ariel
 
A town in Cowlitz county. Home of Yale Elementary School.
Artist Point
 
At the end of Hwy 542 near Mt Baker Ski Area in North Cascades National Park. Used by the Whatcom Association of Celestial Observers.
Auburn
 
Battle Ground
 
Bear Creek Observatory
 
A private observatory in Woodinville. (Not to be confused with nearby Littlebear Observatory.)
Beggars Canyon
 
A private site.
Bellevue
 
Bellingham
 
Home of the Whatcom Association of Celestial Observers.
Bickleton
 
A town in Klickitat county.
Big Bend Community College
 
college in Moses Lake.
Blazing Star Observatory
 
AKA BSO. Site of future private observatory.
Blue Mountain
 
An observing site used by the Seattle Astronomical Society. Near Spada Reservoir NE of Sultan.
Bothell
 
Brewster
 
A town in Okanogan county. Forecast covers the area of central Lake Pateros.
Broch nam Broc Observatory
 
A private observatory.
Buckley
 
Home of Torus Observatory (IAU 653). Forecast also covers Enumclaw and Bonney lake.
Camas Meadows Lodge
 
A lodge in the Camas Land south-west of Cashmere.
Camp Delany
 
A campground in the Sun Lakes-Dry Falls State Park. Home of the Olympic Astronomical Society (OAS) Camp Delany Star Party.
Carnation
 
A town in King county.
Casa Becca del Norte Observatory
 
A private observatory.
Central Washington University Observatory
 
Observatory of Central Washington University and site of star parites held by the CWU Astronomy Club. In Ellensburg.
Centralia
 
Chechaquo Ranch
 
A private ranch near Mazama.
Chelan
 
A town by Chelan by Lake Chelan in Chelan county.
Clallam Bay
 
A town in Clallam County.
Clearview Observatory
 
A private observatory somewhere around Clearview.
Coal Creek Crest
 
A private observing site.
Colville Flats
 
A spot on the shore of Franklin Roosevelt Lake near Kettle Falls.
Conconully
 
Crest Airpark Astro-Shack
 
A private observatory of a member of the Eastside Astronomical Society.
Deer Park
 
Digital-SF Observatory
 
A private observatory.
Eatonville Observatory
 
A private observatory near Eatonville.
Escure Ranch
 
Centered on the parking lot of the Escure Ranch Trailhead. Public land owned by the BLM. Used by the Palouse Astronomical Society.
Evans Above Observatory
 
A Private Observatory in near Vancouver, Washington.
Everett
 
Home of the Everett Astronomical Society.
Everett Astro SP
 
Site of star parties held by the Everett Astronomical Society.
Fishtrap
 
A site used by the Spokane Astronomical Society.
Friday Harbor
 
On San Juan Island.
Gold Mountain Observing Center
 
AKA GOMOC. A privately owed for public observing.
Goldendale Observatory
 
Observatory of Goldendale Observatory State Park. Near Goldendale.
Goldendale Sky Village
 
In Klickitat County.
Graham
 
Used as an observing site by the Tacoma Astronomical Society.
Grayland
 
High Prairie
 
Hilltop Observatory
 
A private observatory somewhere around Hoquiam.
Hobuck Beach
 
A public beach.
Horse Heaven Observatory
 
AKA H2O Observatory. A private observatory near The Horse Heaven Hills.
Horsethief Lake State Park
 
State park near The Dalles.
Hurricane Ridge Visitor Center
 
Visitor center in Olympic National Park.
Indian Prairie Observatory
 
A private observatory somewhere west of Spokane.
Issaquah
 
A town in King county. Forecast also covers Squak Mountain State Park, West Tiger Mountain and Cougar Mountain
Kalaloch Beach
 
Beach in Olympic National Park.
Kalama
 
Keechelus Lake
 
A point on the north-west shore of Keechelus Lake. Near the east side of Snoqualmie Pass.
Kelsar Observatory
 
A private observatory
Kennewick-Pasco-Richland
 
Covering the Tri-Cities area 15 miles around Kennewick.
Klickitat County Star Party
 
Star party.Also site of other observing events including the NWRAL Annual Star Party.
LIGO Hanford Observatory
 
A gavitational-wave observatory not normally subject to the vagaries of weather. Near Richland.
Lake Goodwin
 
Town and lake in Snohomish county.
Lake Lawrence
 
Near Yelm.
Lake Wenatchee
 
Covers the shores of the lake, including Lake Wenatchee State Park.
Littlebear Observatory
 
A private observatory near Redmond. (Not to be confused with Bear Creek Observatory, nearby.)
Long Beach
 
Loowit Imaging Observatory
 
A private observatory in near Shelton.
Lynnwood
 
A town in Snohomish county.
Manastash Ridge Observatory
 
An observatory of the University of Washington.
Maple Valley Observatory
 
A private observatory in Maple Valley.
Marysville Observatory
 
A private observatory near Marysville.
McCleary
 
A town in Grays Harbor county.
McClellan Overlook
 
A lookout on Curly Creek Road.
McMurtrey Site
 
A private observing site.
Merk Observatory
 
A private observatory 11km SE of Moses Lake.
Mount Saint Helens
 
Centered on the non-astronomical Johnston Ridge Observatory.
Mount Vernon
 
Mt. Norway Observatory
 
A private observatory of a member of the Southwest Washington Stargazers. Near Washougal.
New Astronomy Observatory
 
A private observatory near Duvall.
Nike Site Park
 
Favored observing site for young observers from The Harbor School on Vashon Island WA. and members of the Boeing Employees' Astronomical Society
OAS Port Gamble Site
 
An observing site of the Olympic Astronomical Society.
Oak Harbor
 
Observatory Point
 
A point near Striped Peak and Freshwater Bay, on the Strait of Juan De Fuca.
Observe the Heavens Astronomy Camp
 
A site of an observing program of The Astronomical League. Near Inchelium
Olympia
 
PNRO
 
The Pacific Northwest Regional Observatory. A private observatory run by The Alliance for the Advancement of Science Through Astronomy (AASTA).
Palouse Falls Star Party
 
Public starparty held buy the Palouse Astronomical Society at Palouse Falls State Park.
Pixie Land
 
A private observing site.
Port Townsend
 
Poulsbo Deep Space Observatory
 
A private obesrvatory somewhere around Poulsbo.
Rattlesnake Lake
 
An observing site of the Seattle Astronomical Society. Near Cedar Falls.
Rawson Quarry
 
Former quarry, now on public DNR land. Used by target shooters and rockhounds in the daytime and by some astronomers at night. Parking requires a Discover pass.
Redmond
 
Rimrock Meadows
 
A campground near Waterville and Ephrata.
Ritchie Observatory
 
An observatory of the Battle Point Astronomical Association. On Bainbridge Island.
Robert and Elisabeth Moore Observatory
 
Aka REMO. Observatory at Columbia Basin College.
Sagebrush Skies Observatory
 
A private observatory in Eltoia.
Sauk Mountain Overlook
 
Overlook near Sauk Mountain Trail.
Seabeck
 
Seattle
 
Home of the Seattle Astronomical Society and the Boeing Employees' Astronomical Society (BEAS).
Sequim
 
Shangri-La Observatory
 
A private observatory near Lyle.
Skunk Bay
 
Near Hansville.
Skywalker Observatory
 
A private observatory somewhere around Roosevelt Lake.
Snoqualmie Point Park
 
City Park adjacent to the Rattlesnake Mountain Trailhead. Used by the Boeing Employees' Astronomical Society and the Seattle Astronomical Society.
Southwest Corner Mountain
 
A private observing site somewhere around Brewster.
Spokane
 
Home of the Spokane Astronomical Society.
Spring Ridge Observatory
 
A private observatory.
Stage Line Ranch
 
A private ranch with camping.
Stargazer Observatory
 
Future site of a private observatory on Camano Island.
Starr Butte
 
A site used by the Spokane Astronomical Society.
Starry Hill Observatory
 
An educational observatory and planetarium under construction in South Pierce County.
Steilacoom
 
A site on the grounds of Fort Steilacoom. Used by the Tacoma Astronomical Society.
Steptoe Butte State Park
 
State park. Used by the Palouse Astronomical Society and the Spokane Astronomical Society.
Stevenson
 
Suiattle Valley
 
Two observing sites in the Suiattle Valley. A few miles north east of Mansford.
Sunrise Point
 
An observing site used by the Tacoma Astronomical Society. In Mount Rainier National Park.
Table Mountain
 
Home of the Table Mountain Star Party. Near Ellensburg.
Table Mountain Star Party at Eden Valley
 
Site of the 2013 Table Mountain Star Party. On private land.
Tanaeum Ridge and Peoh Point
 
Peoh Point is home of the Boeing Employees Astronomical Society star party. Near Cle Elum.
The Jewett Observatory
 
Observatory of Washington State University. With public events cosponsored by the Palouse Astronomical Society. Near Pullman. Forecast also covers Moscow, Idaho.
The Naked Astronomer Observatory
 
A private observatory near Port Orchard.
The University of Puget Sound Observatory
 
Observatory of the physics department of the University of Puget Sound in Tacoma.
The W.M. Keck Observatory at Pacific Lutheran University
 
Campus observatory of Pacific Lutheran University.
Thorn Garden Observatory
 
A private observatory near Port Angeles.
Tinyblue Observatory
 
A private observatory near Greenbank on Whidbey Island.
Trout Lake
 
A town in Klickitat county.
Twisp
 
A town in Okanogan county.
UI Observatory
 
Observatory of the University of Idaho. With pubic events cosponsored by the Palouse Astronomical Society.
Ursae Majoris Observatory
 
A private observatory near Auburn
Voice Observing Site
 
A private observing site.
Walla Walla
 
Home of Whitman College and not far from Whitman College's Bracher Observatory.
Wenatchee
 
Close to an observing site of the Camassia Group.
White Salmon
 
Wild Rose Ridge Observatory
 
A private observatory somewhere in the area of Cashmere.
Willow Grove Park
 
A park
Winlock
 
Winthrop
 
Woodland
 
A town in Cowlitz county.
Yakima
 
Home of the Yakima Valley Astronomy Club.

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