Name | State(s) | Acreage | Area: km² |
Tongass National Forest |
Alaska |
16,576,303 |
67,081.92 |
Chugach National Forest |
Alaska |
5,392,925 |
21,824.39 |
Toiyabe National Forest (part of Humboldt-Toiyabe National Forest) |
Nevada / California |
3,238,284 |
13,104.87 |
Tonto National Forest |
Arizona |
2,872,769 |
11,625.68 |
Gila National Forest |
New Mexico |
2,709,005 |
10,963.95 |
Boise National Forest |
Idaho |
2,653,544 |
10,738.51 |
Challis National Forest (part of Salmon-Challis National Forest) |
Idaho |
2,463,471 |
9,969.31 |
Shoshone National Forest |
Wyoming |
2,437,218 |
9,863.07 |
Humboldt National Forest (part of Humboldt-Toiyabe National Forest) |
Nevada |
2,401,284 |
9,717.65 |
Flathead National Forest |
Montana |
2,360,235 |
9,551.53 |
Payette National Forest |
Idaho |
2,327,548 |
9,419.25 |
White River National Forest |
Colorado |
2,285,992 |
9,251.08 |
Nez Perce National Forest |
Idaho |
2,224,091 |
9,000.58 |
Beaverhead National Forest (part of Beaverhead-Deerlodge National Forest) |
Montana |
2,130,671 |
8,622.52 |
Lolo National Forest |
Montana |
2,127,547 |
8,609.88 |
Superior National Forest |
Minnesota |
2,092,899 |
8,478.44 |
Inyo National Forest |
California / Nevada |
1,903,378 |
7,702.70 |
Dixie National Forest |
Utah |
1,888,509 |
7,642.52 |
San Juan National Forest |
Colorado |
1,878,854 |
7,603.45 |
Lewis and Clark National Forest |
Montana |
1,862,316 |
7,536.53 |
Coconino National Forest |
Arizona |
1,856,038 |
7,511.12 |
Rio Grande National Forest |
Colorado |
1,823,192 |
7,378.20 |
Gallatin National Forest |
Montana |
1,818,199 |
7,357.99 |
Apache National Forest (part of Apache-Sitgreaves National Forest) |
Arizona / New Mexico |
1,813,601 |
7,339.38 |
Kootenai National Forest |
Montana / Idaho |
1,812,425 |
7,334.62 |
Sawtooth National Forest |
Idaho / Utah |
1,804,090 |
7,300.89 |
Ouachita National Forest |
Arkansas / Oklahoma |
1,788,325 |
7,237.09 |
Coronado National Forest |
Arizona / New Mexico |
1,786,620 |
7,230.19 |
Salmon National Forest (part of Salmon-Challis National Forest) |
Idaho |
1,772,469 |
7,172.93 |
Los Padres National Forest |
California |
1,762,560 |
7,132.83 |
Klamath National Forest |
California / Oregon |
1,737,774 |
7,032.52 |
Wenatchee National Forest |
Washington |
1,736,678 |
7,028.09 |
Bridger National Forest (part of Bridger-Teton National Forest) |
Wyoming |
1,736,075 |
7,025.65 |
Clearwater National Forest |
Idaho |
1,679,952 |
6,798.52 |
Willamette National Forest |
Oregon |
1,678,053 |
6,790.84 |
Gunnison National Forest |
Colorado |
1,672,136 |
6,766.89 |
Teton National Forest (part of Bridger-Teton National Forest) |
Wyoming |
1,666,569 |
6,744.37 |
Modoc National Forest |
California |
1,663,401 |
6,731.55 |
Targhee National Forest (part of Caribou-Targhee National Forest) |
Idaho / Wyoming |
1,643,501 |
6,651.01 |
Cibola National Forest |
New Mexico |
1,631,419 |
6,602.12 |
Kaniksu National Forest (part of Idaho Panhandle National Forest) |
Idaho / Montana / Washington |
1,627,753 |
6,587.28 |
Deschutes National Forest |
Oregon |
1,596,899 |
6,462.42 |
Bitterroot National Forest |
Montana / Idaho |
1,587,070 |
6,422.64 |
Santa Fe National Forest |
New Mexico |
1,566,147 |
6,337.97 |
Kaibab National Forest |
Arizona |
1,560,165 |
6,313.76 |
Okanogan National Forest |
Washington |
1,499,013 |
6,066.29 |
Mark Twain National Forest |
Missouri |
1,491,124 |
6,034.36 |
Malheur National Forest |
Oregon |
1,465,286 |
5,929.80 |
Fishlake National Forest |
Utah |
1,461,226 |
5,913.37 |
Umatilla National Forest |
Oregon / Washington |
1,407,001 |
5,693.93 |
Carson National Forest |
New Mexico |
1,391,674 |
5,631.90 |
Ashley National Forest |
Utah / Wyoming |
1,382,347 |
5,594.16 |
Gifford Pinchot National Forest |
Washington |
1,319,650 |
5,340.43 |
Sierra National Forest |
California |
1,311,833 |
5,308.80 |
Mount Baker National Forest (part of Mount Baker-Snoqualmie National Forest) |
Washington |
1,301,787 |
5,268.15 |
Manti-La Sal National Forest |
Utah / Colorado |
1,270,646 |
5,142.12 |
Whitman National Forest (part of Wallowa-Whitman National Forest) |
Oregon |
1,266,902 |
5,126.97 |
Snoqualmie National Forest (part of Mount Baker-Snoqualmie National Forest) |
Washington |
1,258,167 |
5,091.62 |
Black Hills National Forest |
South Dakota / Wyoming |
1,252,395 |
5,068.26 |
Prescott National Forest |
Arizona |
1,239,775 |
5,017.19 |
Deerlodge National Forest (part of Beaverhead-Deerlodge National Forest) |
Montana |
1,227,108 |
4,965.93 |
Fremont National Forest |
Oregon |
1,207,039 |
4,884.71 |
Custer National Forest |
Montana / South Dakota |
1,187,516 |
4,805.71 |
Plumas National Forest |
California |
1,176,005 |
4,759.12 |
Shasta National Forest (part of Shasta-Trinity National Forest) |
California |
1,166,155 |
4,719.26 |
Sequoia National Forest |
California |
1,144,276 |
4,630.72 |
Ozark National Forest (part of Ozark-St. Francis National Forest) |
Arkansas |
1,138,966 |
4,609.23 |
Routt National Forest (part of Medicine Bow - Routt National Forest) |
Colorado |
1,125,438 |
4,554.49 |
San Isabel National Forest |
Colorado |
1,120,241 |
4,533.45 |
Pike National Forest |
Colorado |
1,110,648 |
4,494.63 |
Bighorn National Forest |
Wyoming |
1,107,572 |
4,482.18 |
Lincoln National Forest |
New Mexico |
1,103,828 |
4,467.03 |
Medicine Bow National Forest (part of Medicine Bow - Routt National Forest) |
Wyoming |
1,096,890 |
4,438.96 |
Siskiyou National Forest (part of Rogue River-Siskiyou National Forest) |
Oregon / California |
1,094,766 |
4,430.36 |
Mount Hood National Forest |
Oregon |
1,070,600 |
4,332.56 |
Lassen National Forest |
California |
1,070,344 |
4,331.53 |
George Washington National Forest (part of George Washington and Jefferson National Forests) |
Virginia / West Virginia |
1,065,388 |
4,311.47 |
Winema National Forest |
Oregon |
1,045,548 |
4,231.18 |
Trinity National Forest (part of Shasta-Trinity National Forest) |
California |
1,043,677 |
4,223.61 |
Little Missouri National Grassland |
North Dakota |
1,028,128 |
4,160.69 |
Six Rivers National Forest |
California |
998,540 |
4,040.95 |
Wallowa National Forest (part of Wallowa-Whitman National Forest) |
Oregon / Idaho |
997,063 |
4,034.97 |
Ottawa National Forest |
Michigan |
992,078 |
4,014.80 |
Caribou National Forest (part of Caribou-Targhee National Forest) |
Idaho / Wyoming / Utah |
987,221 |
3,995.14 |
Umpqua National Forest |
Oregon |
983,131 |
3,978.59 |
Helena National Forest |
Montana |
982,941 |
3,977.82 |
Uncompahgre National Forest |
Colorado |
955,340 |
3,866.12 |
Colville National Forest |
Washington |
954,413 |
3,862.37 |
Mendocino National Forest |
California |
911,733 |
3,689.65 |
Wasatch National Forest (part of Uinta-Wasatch-Cache National Forest) |
Utah / Wyoming |
908,731 |
3,677.50 |
Monongahela National Forest |
West Virginia |
900,074 |
3,642.47 |
Stanislaus National Forest |
California |
898,121 |
3,634.57 |
Hiawatha National Forest |
Michigan |
894,716 |
3,620.79 |
Uinta National Forest (part of Uinta-Wasatch-Cache National Forest) |
Utah |
880,719 |
3,564.14 |
Tahoe National Forest |
California |
872,975 |
3,532.80 |
Chequamegon National Forest (part of Chequamegon-Nicolet National Forest) |
Wisconsin |
867,181 |
3,509.36 |
St. Joe National Forest (part of Idaho Panhandle National Forest) |
Idaho |
866,511 |
3,506.65 |
Ochoco National Forest |
Oregon |
851,095 |
3,444.26 |
Sitgreaves National Forest (part of Apache-Sitgreaves National Forest) |
Arizona |
818,749 |
3,313.36 |
Roosevelt National Forest |
Colorado |
813,798 |
3,293.32 |
White Mountain National Forest |
New Hampshire / Maine |
750,187 |
3,035.90 |
Chattahoochee National Forest (part of Chattahoochee-Oconee National Forest) |
Georgia |
750,061 |
3,035.39 |
Coeur d'Alene National Forest (part of Idaho Panhandle National Forest) |
Idaho |
726,362 |
2,939.48 |
Arapaho National Forest |
Colorado |
723,668 |
2,928.58 |
Jefferson National Forest (part of George Washington and Jefferson National Forests) |
Virginia / West Virginia / Kentucky |
723,350 |
2,927.29 |
Cache National Forest (part of Uinta-Wasatch-Cache National Forest) |
Utah / Idaho |
701,453 |
2,838.68 |
Eldorado National Forest |
California / Nevada |
685,707 |
2,774.96 |
San Bernardino National Forest |
California |
676,666 |
2,738.37 |
Angeles National Forest |
California |
668,587 |
2,705.68 |
Chippewa National Forest |
Minnesota |
666,619 |
2,697.71 |
Nicolet National Forest (part of Chequamegon-Nicolet National Forest) |
Wisconsin |
664,824 |
2,690.45 |
Cherokee National Forest |
Tennessee / North Carolina |
649,054 |
2,626.63 |
Siuslaw National Forest |
Oregon |
634,204 |
2,566.53 |
Rogue River National Forest (part of Rogue River-Siskiyou National Forest) |
Oregon / California |
628,413 |
2,543.10 |
Olympic National Forest |
Washington |
627,695 |
2,540.19 |
Kisatchie National Forest |
Louisiana |
603,393 |
2,441.84 |
Buffalo Gap National Grassland |
South Dakota |
596,560 |
2,414.19 |
Apalachicola National Forest |
Florida |
562,924 |
2,278.07 |
Daniel Boone National Forest |
Kentucky |
560,787 |
2,269.42 |
Thunder Basin National Grassland |
Wyoming |
547,620 |
2,216.14 |
Manistee National Forest (part of Huron-Manistee National Forest) |
Michigan |
540,226 |
2,186.22 |
Nantahala National Forest |
North Carolina |
531,148 |
2,149.48 |
De Soto National Forest |
Mississippi |
518,587 |
2,098.65 |
Allegheny National Forest |
Pennsylvania |
513,185 |
2,076.79 |
Pisgah National Forest |
North Carolina |
512,670 |
2,074.70 |
Comanche National Grassland |
Colorado |
443,081 |
1,793.09 |
Huron National Forest (part of Huron-Manistee National Forest) |
Michigan |
438,538 |
1,774.70 |
Cleveland National Forest |
California |
438,079 |
1,772.84 |
Green Mountain National Forest |
Vermont |
396,731 |
1,605.51 |
Talladega National Forest |
Alabama |
392,567 |
1,588.66 |
Ocala National Forest |
Florida |
384,140 |
1,554.56 |
Sumter National Forest |
South Carolina |
370,036 |
1,497.48 |
Grand Mesa National Forest |
Colorado |
346,555 |
1,402.46 |
Shawnee National Forest |
Illinois |
265,610 |
1,074.89 |
Francis Marion National Forest |
South Carolina |
258,553 |
1,046.33 |
Wayne National Forest |
Ohio |
239,951 |
971.05 |
Hoosier National Forest |
Indiana |
202,097 |
817.86 |
Pawnee National Grassland |
Colorado |
193,060 |
781.29 |
Homochitto National Forest |
Mississippi |
191,842 |
776.36 |
William B. Bankhead National Forest |
Alabama |
181,230 |
733.41 |
Bienville National Forest |
Mississippi |
178,541 |
722.53 |
Land Between The Lakes National Recreation Area |
Kentucky / Tennessee |
171,280 |
693.15 |
Osceola National Forest |
Florida |
164,579 |
666.03 |
Sam Houston National Forest |
Texas |
163,045 |
659.82 |
Sabine National Forest |
Texas |
160,873 |
651.03 |
Davy Crockett National Forest |
Texas |
160,647 |
650.12 |
Croatan National Forest |
North Carolina |
159,885 |
647.03 |
Holly Springs National Forest |
Mississippi |
155,661 |
629.94 |
Grand River National Grassland |
South Dakota |
154,783 |
626.38 |
Angelina National Forest |
Texas |
153,180 |
619.90 |
Nebraska National Forest |
Nebraska |
141,546 |
572.82 |
Kiowa National Grassland |
New Mexico |
136,417 |
552.06 |
Samuel R. McKelvie National Forest |
Nebraska |
116,079 |
469.76 |
Fort Pierre National Grassland |
South Dakota |
115,890 |
468.99 |
Oconee National Forest (part of Chattahoochee-Oconee National Forest) |
Georgia |
115,340 |
466.76 |
Crooked River National Grassland |
Oregon |
112,357 |
454.69 |
Cimarron National Grassland |
Kansas |
108,175 |
437.77 |
Oglala National Grassland |
Nebraska |
94,520 |
382.51 |
Rita Blanca National Grassland |
Texas / Oklahoma |
92,989 |
376.31 |
Valles Caldera National Preserve |
New Mexico |
89,716 |
363.07 |
Conecuh National Forest |
Alabama |
83,858 |
339.36 |
Sheyenne National Grassland |
North Dakota |
70,446 |
285.08 |
Tombigbee National Forest |
Mississippi |
67,005 |
271.16 |
Delta National Forest |
Mississippi |
60,898 |
246.45 |
Uwharrie National Forest |
North Carolina |
50,369 |
203.84 |
Curlew National Grassland |
Idaho |
47,790 |
193.40 |
Black Kettle National Grassland |
Oklahoma / Texas |
31,286 |
126.61 |
El Yunque National Forest |
Puerto Rico |
28,002 |
113.32 |
St. Francis National Forest (part of Ozark-St. Francis National Forest) |
Arkansas |
21,090 |
85.35 |
Lyndon B. Johnson National Grassland |
Texas |
20,309 |
82.19 |
Butte Valley National Grassland |
California |
18,425 |
74.56 |
Caddo National Grassland |
Texas |
17,873 |
72.33 |
Finger Lakes National Forest |
New York |
16,228 |
65.67 |
Tuskegee National Forest |
Alabama |
11,252 |
45.54 |
Cedar River National Grassland |
North Dakota |
6,717 |
27.18 |
McClellan Creek National Grassland |
Texas |
1,449 |
5.86 |
Choctawhatchee National Forest |
Florida |
743 *See Note |
3.01 *See Note |