Name
County
Size[ 1]
Elevation[ 1]
Estab-[ 2]
Image
Remarks[ 1]
acre
ha
feet
meters
Bear Lake State Park Bear Lake 966 391 5,900 1,800 1969 Comprises two properties on the shore of Bear Lake .
Bruneau Dunes State Park Owyhee 4,800 1,900 2,470 750 1967 Showcases dunes rising up to 470 feet (140 m) above several small lakes.
Castle Rocks State Park Cassia 1,692 685 5,620 1,710 2003 Features granite spires and an early-20th century ranch at the base of Cache Peak .
City of Rocks National Reserve Cassia 14,407 5,830 5,720 1,740 1988 Showcases granite spires and monoliths popular for rock climbing .
Dworshak State Park Clearwater 850 340 1,600 490 1989 Comprises three properties on the shore of the reservoir created by the Dworshak Dam .
Eagle Island State Park Ada 545 221 2,724 830 1983 Features day-use recreational facilities, including a swimming beach and water slide , near Boise .
Farragut State Park Kootenai 4,000 1,600 2,054 626 1966 Features recreational facilities on Lake Pend Oreille at the site of a former U.S. Navy training base.
Harriman State Park Fremont 11,000 4,500 6,120 1,870 1977 Preserves expansive wildlife habitat, a historic ranch, and fly fishing in Henrys Fork within the Greater Yellowstone Ecosystem .
Hells Gate State Park Idaho 960 390 733 223 1973 Contains the mouth of Hells Canyon , the deepest canyon in North America.
Henrys Lake State Park Fremont 585 237 6,470 1,970 1973 Adjoins Henrys Lake 15 miles (24 km) west of Yellowstone National Park .
Heyburn State Park Benewah 8,106 3,280 2,128 649 1908 Preserves three lakes in the oldest state park in the Pacific Northwest .
Lake Cascade State Park Valley 500 200 4,828 1,472 1999 Comprises properties dispersed around Lake Cascade 's 86 miles (138 km) of shoreline.
Lake Walcott State Park Minidoka 65 26 4,700 1,400 1999 Provides water recreation at the northwest end of Lake Walcott .
Land of the Yankee Fork State Park Custer 521 211 5,001–6,500 1,524–1,981 1990 Interprets Idaho's frontier mining history, including the ghost towns of Bayhorse , Bonanza , and Custer .
Lucky Peak State Park Ada 240 97[ 3] 2,750 840 1956 Comprises three day-use areas east of Boise on Lucky Peak Lake and the Boise River .
Massacre Rocks State Park Power 990 400 4,400 1,300 1967 Preserves a boulder field on the Snake River where emigrants on the Oregon and California Trails feared ambush by Native Americans.
McCroskey State Park Benewah , Latah 5,300 2,100 3,039–4,324 926–1,318 1955 Offers a scenic drive along a ridge overlooking the Palouse .
Old Mission State Park Kootenai 18 7.3 2,200 670 1975 Interprets the oldest standing building in Idaho, finished in 1853 as a Jesuit mission to the Coeur d'Alene people .
Ponderosa State Park Valley 1,515 613 5,050 1,540 1973 Preserves a peninsula jutting into Payette Lake .
Priest Lake State Park Bonner 755 306 2,440 740 1973 Comprises three units around Priest Lake in the Selkirk Mountains .
Round Lake State Park Bonner 142 57 2,122 647 1965 Surrounds a 58-acre (23 ha) lake.
Thousand Springs State Park Gooding 1,500 610 2,800 850 2005 Comprises multiple units in the Hagerman Valley where numerous springs charged by the Snake River Aquifer flow out of the eastern valley wall.
Three Island Crossing State Park Elmore 613 248 2,484 757 1968 Interprets the site of a ford over the Snake River on the Oregon Trail ,
Winchester Lake State Park Lewis 418 169 3,900 1,200 1969 Surrounds a 104-acre (42 ha) lake known for its rainbow trout fishing.
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