Bortle 2 sites in the U.S.

List of Class 2-3 Bortle parks and places in the U.S. Bortle 2 are the second-darkest skies on Earth for stargazing, astrophotography, star parties, and club events. Often these are national and state parks and forests that are remote or "protected" against light pollution.

A Bortle value represents the potential of a location, not what it will be when you are there. Local factors such as dust, wildfire smoke, haze, humidity, clouds, or atmospheric turbulence can diminish the Bortle value that night.

The IDA column indicates if a site is an IDA-certified sanctuary, reserve, or park. Also use your local astronomy club for guidance as they will know the darkest places near you.

Bladon Springs SP Alabama
Conecuh NF Alabama
Roland Cooper SP Alabama
Chilkoot Lake SRA Alaska
Donnelly Creek SRA Alaska
Eagle Trail SRA Alaska
Kachemak Bay SP Alaska
King Mountain SRA Alaska
Moon Lake SRA Alaska
Sandspit Point SMP Alaska
Stariski SRA Alaska
Worthington Glacier SRA Alaska
Alamo Lake SP Arizona
Flagstaff Area NM park Arizona
Kartchner Caverns SP park Arizona
Oracle SP park Arizona
Petrified Forest NP park Arizona
Tonto Monument NM park Arizona
Tumacacori NP park Arizona
Buffalo National River NR park Arkansas
Cossatot River SP Arkansas
Queen Wilhelmina SP Arkansas
Admiral William Standley SRA California
Ahjumawi Lava Springs SP California
Anza-Borrego Desert SP park California
Benbow SRA California
Caspar Headlands SNR California
Castle Crags SP California
Del Norte Coast Redwoods SP California
Estero Bluffs SP California
Fort Ross SP California
Grizzly Creek Redwoods SP California
Grover Hot Springs SP California
Harry A. Merlo SRA California
Hendy Woods SP California
Humboldt Lagoons SP California
John Little SNR California
Joshua Tree NP park California
Julia Pfeiffer Burns SP California
Kruse Rhododendron SNR California
Limekiln SP California
Manchester SP California
McArthur-Burney Falls SP California
Mendocino NF California
Mono Lake Tufa SNR California
Navarro River Redwoods SP California
Patrick’s Point SP California
Pfeiffer Big Sur SP California
Plumas-Eureka SP California
Point Sur SP California
Prairie Creek Redwoods SP California
Richardson Grove SP California
Salt Point SP California
Van Damme SP California
Crawford SP Colorado
Great Sand Dunes NP park Colorado
Gunnison NF Colorado
Jackson Lake SP park Colorado
John Martin Reservoir Colorado
Navajo SP Colorado
Paonia SP Colorado
Pearl Lake SP Colorado
Ridgway SP Colorado
Slumgullion Center CP park Colorado
Stagecoach SP Colorado
State Forest SP Colorado
Steamboat Lake SP Colorado
Sylvan Lake SP Colorado
Uncompahre NF Colorado
Vega SP Colorado
White River NF Colorado
Big Cypress Preserve NP park Florida
Kissimmee Prairie SP park Florida
St George Island SP Florida
Okefenokee WR Georgia
Stephen C. Foster SP park Georgia
Ha'ena SP Hawaii
Haleakala NP Hawaii
Kau Forest Reserve Hawaii
Kaumahina State Wayside Hawaii
Koke'e SP Hawaii
Na Pali-Kona FR Hawaii
Pala'au SP Hawaii
Polipoli Spring SRA Hawaii
Pua'a Ka'a State Wayside Hawaii
Wai'anapanapa SP Hawaii
Wailua Valley State Wayside Hawaii
Waimea Canyon SP Hawaii
Bear Lake SP Idaho
Castle Rocks SP Idaho
Central Idaho Dark Sky NR reserve Idaho
City of Rocks NR Idaho
Craters Of The Moon NM park Idaho
Harriman SP Idaho
Henrys Lake SP Idaho
Priest Lake SP Idaho
Sawtooth NP Idaho
Middle Fork River SF park Illinois
Nine Eagle SP Iowa
Cedar Bluff SP Kansas
Cross Timbers SP Kansas
Fall River SP Kansas
Kanopolis SP Kansas
Lake Scott SP Kansas
Little Jerusalem Badlands SP Kansas
Lovewell SP Kansas
Meade SP Kansas
Mushroom Rock SP Kansas
Webster SP Kansas
Wilson SP Kansas
Dewey Wills WM Louisiana
Tensas River NWR Louisiana
Baxter SP Maine
Cobscook Bay SP Maine
Grafton Notch SP Maine
Katahdin Woods & Waters NM sanctuary Maine
Lily Bay SP Maine
Mount Blue SP Maine
Peaks-Kenny SP Maine
Quoddy Head SP Maine
Rangeley Lake SP Maine
Roque Bluffs SP Maine
Clear Lake SP Michigan
Craig Lake SP Michigan
Dr. T.K. Lawless CP park Michigan
Fayette Historic SP Michigan
Fort Wilkins Historic SP Michigan
Headlands SP park Michigan
Hiawatha NF Michigan
Hoeft SP Michigan
Isle Royale NP Michigan
Lake Gogebic SP Michigan
Laughing Whitefish Falls SP Michigan
Leelanau SP Michigan
Negwegon SP Michigan
Onaway SP Michigan
Porcupine Mountains Wilderness SP Michigan
Sturgeon Point SP Michigan
Tahquamemon Falls Michigan
Thompsons Harbor SP Michigan
Wells SP Michigan
Wilderness SP Michigan
Big Bog SRA Minnesota
Boundary Waters Canoe NWR sanctuary Minnesota
Cascade River SP Minnesota
Garden Island SRA Minnesota
George Crosby Manitou SP Minnesota
Hayes Lake SP Minnesota
Itasca SP Minnesota
La Salle Lake SRA Minnesota
Old Mill SP Minnesota
Savanna Portage SP Minnesota
Scenic SP Minnesota
Split Rock Lighthouse SP Minnesota
Temperance River SP Minnesota
Voyageurs NP park Minnesota
Zippel Bay SP Minnesota
Current River Missouri
Sam Baker Missouri
Ackley Lake SP Montana
Bannack SP Montana
Beaverhead Rock SP Montana
Fish Creek SP Montana
Glacier NP Montana
Logan SP Montana
Medicine Rocks SP sanctuary Montana
Thompson Chain-of-Lakes Montana
Agate Fossil Beds Nebraska
Beaver Dam SP Nevada
Echo Canyon SP Nevada
Elgin Schoolhouse Nevada
Massacre Rim WSA sanctuary Nevada
Rye Patch Reservoir Nevada
Ward Charcoal Ovens SP Nevada
Androscoggin Wayside Park New Hampshire
Coleman SP New Hampshire
Crawford Notch SP New Hampshire
Deer Mountain Campground New Hampshire
Dixville Notch SP New Hampshire
Lake Francis SP New Hampshire
Lake Tarleton SP New Hampshire
Mollidgewock SP New Hampshire
Mt. Washington SP New Hampshire
White Mountain NF New Hampshire
Capulin Volcano NM park New Mexico
Chaco Culture NP park New Mexico
Cimarron Canyon SP New Mexico
City of Rocks SP New Mexico
Conchas Lake SP New Mexico
Coyote Creek SP New Mexico
El Morro NM park New Mexico
El Vado Lake SP New Mexico
Fort Union NM park New Mexico
Heron Lake SP New Mexico
Salinas Pueblo Missions NM park New Mexico
Valles Caldera NR New Mexico
Villanueva SP New Mexico
Adirondack Park New York
Mayland Earth to Sky SP park North Carolina
Ocracoke Campground North Carolina
Pisgah SP park North Carolina
Beaver Lake SP North Dakota
Alabaster Caverns Oklahoma
Clayton Lake Oklahoma
Gloss Mountain SP Oklahoma
McGee Creek SP Oklahoma
Talimena SP Oklahoma
Arizona Beach SRA Oregon
Cape Blanco SP Oregon
Cape Lookout SP Oregon
Cape Sebastian Oregon
Carl G. Washburne SP Oregon
Cascadia SP Oregon
Catherine Creek SP Oregon
Collier Memorial SP Oregon
Cottonwood Canyon SP Oregon
Emigrant Springs SRA Oregon
Hug Point SRA Oregon
Humbug Mountain SP Oregon
Jackson F. Kimball SRA Oregon
Joseph H. Stewart SRA Oregon
Minam SRA Oregon
Prineville Reservoir SP park Oregon
Saddle Mountain SNA Oregon
Sitka Sedge SNA Oregon
Stonefield Beach SRA Oregon
Tokatee Klootchman SNA Oregon
Umpqua NF Oregon
Unity Lake SRA Oregon
Wallowa Lake SRA Oregon
White River Falls SP Oregon
Willamette NF Oregon
Cherry Springs SP park Pennsylvania
Susquehannock SF Pennsylvania
Badlands NP South Dakota
Buryanek SRA South Dakota
Fort Sisseton SP South Dakota
Lake Louise SRA South Dakota
Little Moreau SRA South Dakota
Llewellyn Johns SRA South Dakota
North Wheeler SRA South Dakota
Pease Creek SRA South Dakota
Platte Creek SRA South Dakota
Snake Creek SRA South Dakota
Swan Creek SRA South Dakota
West Bend SRA South Dakota
West Whitlock SRA South Dakota
Obed Wild & Scenic River NR park Tennessee
Balmorhea State Park SP Texas
Big Bend Ranch SP park Texas
Caprock Canyons SP Texas
Colorado Bend SP Texas
Copper Breaks SP park Texas
Davis Mountains SP Texas
Devil's River SNA sanctuary Texas
Devil's Sinkhole Texas
Kickapoo Cavern SP Texas
Lost Maples SNA Texas
Seminole Canyon SP Texas
UBarU Camp & Retreat park Texas
Antelope Island SP park Utah
Arches NP park Utah
Bear Lake SP Utah
Bryce Canyon NP park Utah
Cedar Breaks NM park Utah
Coral Pink Sand Dunes SP Utah
East Canyon SP park Utah
Green River SP Utah
Hovenweep NM park Utah
Jordanelle SP park Utah
Kodachrome Basin SP park Utah
Natural Bridges NM park Utah
North Fork SP park Utah
Piute SP Utah
Rainbow Bridge NM sanctuary Utah
Steinaker SP park Utah
Yuba SP Utah
Big Deer SP Vermont
Boulder Beach SP Vermont
Kettle Pond SP Vermont
Maidstone SP Vermont
New Discovery SP Vermont
Ricker Pond SP Vermont
Seyon Lodge SP Vermont
Stillwater SP Vermont
Highland County Virginia
James River SP park Virginia
Rappahannock CP park Virginia
Staunton River SP park Virginia
Brooks Memorial SP Washington
Camp Wooten SP Washington
Colville NF Washington
Crawford SP Washington
Fields Spring SP Washington
Leadbetter Point SP Washington
Lyons Ferry SP Washington
Mount Rainier NP Washington
Mt Adams Washington
North Cascades NP Washington
Olympic NP Washington
Palouse Falls SP Washington
Pearrygin Lake SP Washington
Rockport SP park Washington
Sun Lakes SP Washington
Beartown SP West Virginia
Calvin Price SF West Virginia
Cass Scenic Railroad SP West Virginia
Droop Mountain Battlefield SP West Virginia
Holly River SP West Virginia
Kumbrabow SF West Virginia
Seneca SF West Virginia
Watoga SP West Virginia
Big Bay SP Wisconsin
Chequamegon-Nicolet NF Wisconsin
Newport SP park Wisconsin
Rock Island SP Wisconsin
Bighorn NF Wyoming
Boysen SP Wyoming
Bridger-Teton NF Wyoming
Seminoe SP Wyoming

NP = national park | SP = state park | NF = national forest | SF = state forest | NWR = national wildlife reserve | SRA = state recreational area

U.S. nighttime lights satellite map

US night lights satellite image

2019 satellite image showing US light pollution. See full interactive map at Blue Marble Navigator.

U.S. light pollution map

US light pollution map

2015 map showing US light pollution based on Bortle scale/SQM data. See full interactive map at