Question: When was the area on the list designated a wilderness that is in the state that is the 24th-most populous of the United States ?

text: List of old-growth forests
North America -- United States
See also : List of old growth forests in Massachusetts Tongass National Forest , Alaska Arborist and Coast Redwood , Jedediah Smith Redwoods State Park , California Porcupine Mountains , Michigan Rock Creek Wilderness , Oregon Snyder Middleswarth Natural Area , Pennsylvania Linville Gorge Wilderness in the Pisgah National Forest , North Carolina Congaree National Park , South Carolina Olympic National Park , Washington
This is a list of existing old-growth (virgin) forests, or remnants of forest, of at least 10 acres (4.0 hectares). ecoregion information from Terrestrial Ecoregions of the World. (NB: The terms old growth and virgin may have various definitions and meanings throughout the world. See old-growth forest for more information.)
State Area Old-growth extent WWF ecoregion Old-growth forest type
Alabama Sipsey Wilderness  Appalachian mixed mesophytic forests Eastern Hemlock , American Beech , Sweet Birch , White Oak , Tulip Poplar
Alaska Tongass National Forest 5,400,000 acres ( 2,200,000 ha ) Northern Pacific coastal forests , Pacific Coastal Mountain icefields and tundra Western Red Cedar , Sitka Spruce , Western Hemlock
Arkansas White River National Wildlife Refuge 973 acres ( 394 ha ) Mississippi lowland forests American Sweetgum , Nuttall 's Oak , Willow Oak , Sugarberry , American Elm , Green Ash , American Sycamore , Pecan , American Elm , Baldcypress
Arkansas Ouachita National Forest 800,000 acres ( 320,000 ha )  Post Oak , Shortleaf Pine , Hickory , Northern Red Oak , White Oak , Blackjack Oak , Eastern Redcedar , Gum Bumelia , Winged Elm , Yaupon
Arkansas Ozark-St. Francis National Forest 11,000 acres ( 4,500 ha )  Shortleaf Pine , Post Oak , Blackjack Oak , Eastern Black Oak , White Oak , Northern Red Oak
Arkansas Hot Springs National Park 320 acres ( 130 ha )  Shortleaf Pine , Blackjack Oak , White Oak
Arkansas Overflow National Wildlife Refuge 230 acres ( 93 ha )  American Beech , Sugar Maple
California Yosemite National Park 225,510 acres ( 91,260 ha ) Sierra Nevada forests Giant Sequoia , Ponderosa Pine , Jeffrey Pine , Sugar Pine , White Fir , California Incense Cedar , Coast Douglas-fir , Red Fir , Western White Pine , Lodgepole Pine , Foxtail Pine
California Sequoia - Kings Canyon National Park 202,430 acres ( 81,920 ha ) Sierra Nevada forests Giant Sequoia , Ponderosa Pine , Jeffrey Pine , Sugar Pine , White Fir , Red Fir , California Incense Cedar
California Lassen Volcanic National Park 27,130 acres ( 10,980 ha ) Sierra Nevada forests Ponderosa Pine , Jeffrey Pine , Sugar Pine , White Fir , Red Fir , Western White Pine , Mountain Hemlock , Lodgepole Pine , Whitebark Pine
California Redwood National and State Parks 38,982 acres ( 15,775 ha ) or more Northern California coastal forests Coast Redwood
California Humboldt Redwoods State Park 23,600 acres ( 9,600 ha ) Northern California coastal forests Coast Redwood
California Muir Woods National Monument 240 acres ( 97 ha ) California interior chaparral and woodlands Coast Redwood
California Samuel P. Taylor State Park 600 acres ( 240 ha ) California interior chaparral and woodlands Coast Redwood
California Big Basin Redwoods State Park 10,800 acres ( 4,400 ha ) Northern California coastal forests Coast Redwood
California Henry Cowell Redwoods State Park 200 acres ( 81 ha ) Northern California coastal forests Coast Redwood , Coast Douglas-fir , Pacific Madrone , Ponderosa Pine
California Headwaters Forest Reserve 3,088 acres ( 1,250 ha ) Northern California coastal forests Coast Redwood
California Blue oak woodlands 500,000-2,300,000 acres ( 200,000-930,000 ha ) California interior chaparral and woodlands Blue Oak
California Angeles National Forest 29,000 acres ( 12,000 ha ) California montane chaparral and woodlands Jeffrey Pine , Coast Douglas-fir , Ponderosa Pine , White Fir , Lodgepole Pine
California Eldorado National Forest 122,000 acres ( 49,000 ha ) Sierra Nevada forests Coast Douglas-fir , Ponderosa Pine , White Fir , Lodgepole Pine , Red Fir