Mt. Brewer, to the southwest. - Public Domain image, National Parks Gallery

Mt. Brewer, to the southwest. - Public Domain image, National Parks Ga...

SEKI Historic Image Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description

Death valley, Bighorn Ram - Public Domain image, National Parks Gallery

Death valley, Bighorn Ram - Public Domain image, National Parks Galler...

A large bighorn ram stands on a cliff. Male bighorn sheep are easily identified by their larger curved horns, which grow throughout their lives.

National parks: SITK_25927 - public domain image

National parks: SITK_25927 - public domain image

Public domain photograph of Sitka, Alaska, no copyright restrictions image - Picryl description

El Capitan Guadalupe Mountains national park

El Capitan Guadalupe Mountains national park

El Capitan lights up at sunset Public domain photograph of mountain range, national park, nature view, free to use, no copyright restrictions image - Picryl description

National parks: SITK_26340_wm - public domain image

National parks: SITK_26340_wm - public domain image

Picryl description: Public domain image of a world heritage landmark, natural or regular park, free to use, no copyright restrictions.

National parks: Train - public domain image

National parks: Train - public domain image

A train passes through Thurmond. Public domain photograph of freight train, free to use, no copyright restrictions image - Picryl description

011/001.180--Chicago, Rock Island & Pacific Railroad Locomotives [Group 1]

011/001.180--Chicago, Rock Island & Pacific Railroad Locomotives [Grou...

Public domain photograph of a steam locomotive, train car, railroad, railway, 19th-20th century, free to use, no copyright restrictions image - Picryl description

Ocmulgee mounds - Foggy Morning

Ocmulgee mounds - Foggy Morning

A view of the wetland area on a foggy morning Public domain photograph of a pond in the woods, swamp, trees, free to use, no copyright restrictions image - Picryl description

Train station Train at Thurmond Depot - Public domain photograph.

Train station Train at Thurmond Depot - Public domain photograph.

#1041 heads for the yards; 1954 Public domain photograph of a train car, locomotive, engine, free to use, no copyright restrictions image - Picryl description

Looking for Love - National Parks Gallery

Looking for Love - National Parks Gallery

Overlooking the Plains of Murie Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.

National parks: Windswept - public domain image

National parks: Windswept - public domain image

Wind and clouds often whip over Denali Public domain photograph of mountain range, national park, nature view, free to use, no copyright restrictions image - Picryl description

Glacier national park - Mt. Helen

Glacier national park - Mt. Helen

Two Medicine Valley is a great place to catch a sunrise.

National parks: VanTatenhoveJ_NearHowellLanding_PaddlersInfall_20161001 - public domain image

National parks: VanTatenhoveJ_NearHowellLanding_PaddlersInfall_2016100...

Public domain image of wetland, water, free to use, no copyright restrictions image - Picryl description

Upper Delaware Scenic and Recreational River

Upper Delaware Scenic and Recreational River

A foggy morning on the Upper Delaware. Public domain photograph of people with a small paddle boat, or canoe, free to use, no copyright restrictions image - Picryl description

HFCA 1607_Mission 66_401.jpg - Public Domain image, National Parks Gallery

HFCA 1607_Mission 66_401.jpg - Public Domain image, National Parks Gal...

View of Wheeler Peak and Bristlecone Pines in the Mathes Glacier in the Great Basin National Park.

Rio Grande Vista - National Parks Gallery

Rio Grande Vista - National Parks Gallery

Rio Grande Vista and Crown Mountain Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.

A winter storm approaches Tumacácori.

A winter storm approaches Tumacácori.

Tumacácori displays a rainbow of color

Cedar Breaks RoelandtFamilyHikes (8)

Cedar Breaks RoelandtFamilyHikes (8)

Public domain photograph of National Park, nature, free to use, no copyright restrictions image - Picryl description

Frosty Woods, River Raisin battlefield

Frosty Woods, River Raisin battlefield

Early morning image of frosted tree line

Ohiopyle Falls - National parks scenic trails

Ohiopyle Falls - National parks scenic trails

Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.

Sitka National Park - SITK_26020, Alaska

Sitka National Park - SITK_26020, Alaska

Public domain photograph of Sitka, Alaska, no copyright restrictions image - Picryl description

Ozark Scenic Riverways: Klepzig Mill

Ozark Scenic Riverways: Klepzig Mill

Klepzig Mill by Patty Wheatley-Bishop

National parks: 960_SOB_Canyon - public domain image

National parks: 960_SOB_Canyon - public domain image

Picryl description: Public domain view of a mountain range, mountainous landscape, free to use, no copyright restrictions.

“The Two Guardsmen” Oil Painting

“The Two Guardsmen” Oil Painting

Flute. Elderberry flute made by Dulce, a Southern Miwok woman born in Yosemite Valley who lived with her family near Cascades until the arrival of the Mariposa Battalion in 1851.

Valley Forge national park - VAFO 63305

Valley Forge national park - VAFO 63305

Train heading past Port Kennedy on the former Reading Rail Road Line.

011/001.231--Cooperstown & Charlotte Valley Railroad Locomotives

011/001.231--Cooperstown & Charlotte Valley Railroad Locomotives

Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.

Burnside Bridge, National Parks gallery

Burnside Bridge, National Parks gallery

Burnside Bridge spans Antietam Creek. Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description

Giant Forest Sunrise - National Parks Gallery

Giant Forest Sunrise - National Parks Gallery

This photo is an entry to the Sequoia & Kings Canyon National Park Facebook Photo Contest