Hickory Horned Devil - National Parks Gallery
The caterpillar of the Regal Moth (Citheronia regalis). It looks fierce, but can't sting you. The adult moth is part of the Saturniidae family. It only survives a short time after emerging from the cocoon, l... More
National parks: Trillium - public domain image
Ants help spread the seeds of this plant.
Spring Beauty- free images of flowers
Flowers can be pink or white. Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
Io Moth, National Parks gallery
Io moths are sexually dimorphic. Males are yellow and have larger antennae, but have the same spots on the wings. The moth in the picture is a female. Like other moths in the Saturniidae family, Io moths can... More
National parks: Periwinkle - public domain image
Periwinkle is a non-native, invasive plant, which originated in Europe. It is popular in gardens because it is resistant to pests, but it will crowd out native species once it escapes into wild areas.
Skunk cabbage- free images of flowers
Skunk cabbage is one of the first plants to flower in the spring. Skunk cabbage generates its own heat as it flowers, which allows the plant to bloom even if the ground is still frozen.
National parks: Wingstem - public domain image
Wingstem blooms in late summer. This photo was taken in September. These plants can grow to be 6-10 feet tall.
Dutchmans Breeches, National Parks gallery
Dicentra cucullaria Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
National parks: Bluebells - public domain image
Bluebells typically bloom sometime in late March to early April. Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
National parks: Bluebells - public domain image
Overlook 1 and the trail connecting Great Falls and Riverbend parks are a good location to see bluebells.
Trout Lily, National Parks gallery
Erythronium americanum . Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description
Blue Phlox, National Parks gallery
A native plant. Blooms come in shades of blue and lavender.
Introduction to NPS Operations 1968 (class photo) : 01/15/68 - 2/22/68...
First row (l. to r.) Dwight L. Hamilton, TC staff; David B. Ames, TC staff; Wayne D. Cone, TC staff; Sydney M. Ruesch, TC staff; John C. Raftery, TC staff; Charles W. Wendt, TC staff; Donald L. Jackson, TC staf... More
Great Falls Park, Virginia - Public domain map
Scale ca. 1:12,500. Oriented with north toward the upper left. Includes illus. Text and illus. on verso. Available also through the Library of Congress Web site as a raster image. AACR2
Great Falls Park, Virginia - Public domain map
Scale ca. 1:12,000. Title from verso. Oriented with north toward the upper left. Includes text. Text and ill. on verso. Available also through the Library of Congress Web site as a raster image. AACR2
Two Views of Waterfalls and Rapids at Great Falls Park, Virginia
Views of falls and rapids at Great Falls Park, Virginia.
Two Views of Waterfalls and Rapids at Great Falls Park, Virginia
Views of falls and rapids at Great Falls Park, Virginia.
Two Views of Waterfalls and Rapids at Great Falls Park, Virginia
Views of falls and rapids at Great Falls Park, Virginia.
Two Views of Waterfalls and Rapids at Great Falls Park, Virginia
Views of falls and rapids at Great Falls Park, Virginia.
Great Falls Park, Virginia - Public domain map
Relief shown by shading. Panel title: Great Falls Park. Includes text and location map. Text and col. ill. on verso. "*GPO: 1981--341-578/17." Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
Relief shown by shading. Panel title: Great Falls Park. "Reprint 1982." Includes text and location map. Text and ill. (some col.) on verso. Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
"*GPO: 1988--201-941/80052. Reprint 1988." Relief shown by shading. Includes text and location map. Text and ill. (some col.) on verso. Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
"*GPO: 1989--242-345/80144. Reprint 1989." Relief shown by shading. Panel title: Great Falls Park, Virginia, official map and guide. Includes text and location map. Text and ill. (some col.) on verso. Available... More
Great Falls Park, Virginia - Public domain map
"*GPO: 1991--281-954/20079. Reprint 1991." Relief shown by shading. Panel title: Great Falls Park, Virginia, official map and guide. Includes text and location map. Text and ill. (some col.) on verso. Available... More
Great Falls Park, Virginia - Public domain map
"*GPO: 1992--312-248/40152. Reprint 1992." Relief shown by shading. Panel title: Great Falls Park, Virginia, official map and guide. Includes text and location map. Text and ill. (some col.) on verso. Available... More
Great Falls Park, Virginia - Public domain map
"*GPO: 1996--404-952/40139. Reprint 1993." Relief shown by shading. Includes text and area map. Text and ill. (some col.) on verso. Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
"*GPO: 1998--432-903/60225. Reprint 1998." Relief shown by shading. Includes text. Text, col. ill., and area map on verso. Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
"*GPO: 2002--491-282/40219. Reprint 2002." Relief shown by shading. Title from panel. Includes text. Text, col. ill., and area map on verso. Available also through the Library of Congress Web site as a raster image.
Great Falls Park, Virginia - Public domain map
"*GPO: 2007--330-358/00689. Reprint 2002." Relief shown by shading. Title from panel. Includes text. Text, col. ill., and area map on verso. Available also through the Library of Congress Web site as a raster image.
Tree floating downstream - National Parks Gallery
A large tree is carried downstream through Mather Gorge.
Downstream view from Overlook 3
A view looking downstream from Overlook 3. Clifftops that are normally 30+ feet above the river are under water.
AA Gorge footbridge on the River Trail
The AA Gorge bridge on the River Trail went underwater during the flood.
Deer herd in winter - Public Domain image, National Parks Gallery
A group of whitetail deer in winter Public domain photograph of a deer, wild animal, wilderness, nature, free to use, no copyright restrictions image - Picryl description
Visitor Center during and after the flood
Two photos of the Visitor Center, during and after the January flood.
Great Falls from Overlook 3 - Public Domain image, National Parks Gall...
The Falls at a normal water level. During a flood, they are completely underwater.
Tropical Storm Fran flood - Public Domain image, National Parks Galler...
Looking downstream from the overlooks during the flood.
Standing waves, National Parks gallery
These waves are formed as floodwater flows over submerged rocks. C&O Canal's overlook can be seen to the right side of the picture.
Floodwaters from Overlook 3 - Public Domain image, National Parks Gall...
Floodwaters from Overlook 3 Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description
Canal Trail - National parks scenic trails
Floodwaters cover the Canal Trail near Overlook 2.
Winter Ice, National Parks gallery
The river doesn't freeze, but ice builds up in the falls and along the banks.
Great Falls in autumn - Public Domain image, National Parks Gallery
A photo of the Great Falls on an autumn day.
Cloudy Day in the Gorge - Public Domain image, National Parks Gallery
A cloudy day in Mather Gorge Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
Mather Gorge looking upstream - Public Domain image, National Parks Ga...
Normal water level, looking upstream from Mather Plaque on the river trail.
Overlook 1 during the flood - Public Domain image, National Parks Gall...
The river was high enough to splash over the retaining wall next to the wayside.
Trails upstream of the Visitor Center
Flooding along the trail that connects Great Falls with Riverbend Park.
Looking downstream from Overlook 1
A view looking downstream near the time that the river crested.
The Canal Cut - National Parks Gallery
The canal cut, blasted through the cliff with black powder. Locks 4 and 5 were located within the cut.
Juvenile Black Rat Snake - Public Domain image, National Parks Gallery
A juvenile black rat snake. As he grows, he will turn solid black, except for the stomach, which is white with black markings.
Stonemason's Mark, National Parks gallery
Stonemason's Mark, carved in the stone by a mason.
The Patowmack Company Logo - Public Domain image, National Parks Galle...
The Patowmack Company Logo Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description
River of Change sign at Overlook 3
The River of Change wayside at Overlook 3 during the January Flood.
Canal Cut during flood - Public Domain image, National Parks Gallery
The Canal Cut, where locks 4 and 5 were located, during the flood.
Milk Snake - free images of reptiles
Milk snake sunning itself at Overlook 1
Lock 1, National Parks gallery - Public Domain image, National Parks G...
A view of Lock 1 from the top of the lock.
High Water Pole near Overlook 3
High Water Pole near Overlook 3 in 1996.
Fall view from Cow Hoof Rock - Public Domain image, National Parks Gal...
Looking upstream from Cow Hoof Rock on the River trail during autumn.
Canal Trail in picnic area - Public Domain image, National Parks Galle...
Floodwaters in the picnic area. Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description
North Parking Lot - National Parks Gallery
Geese swim in the flooded field next to the north parking lot.
A Stormy Day - National Parks Gallery
A stormy day at the falls, in November. Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
Overlook 1 Comparison Photo - Public Domain image, National Parks Gall...
Each of these photos was taken in the same location at Overlook 1.
Overlook 3 near the flood's crest
Photo taken from Overlook 3 near the flood's crest.
Beaver in Great Falls - Public Domain image, National Parks Gallery
A beaver in Great Falls Park
Mather Gorge, National Parks gallery
Mather Gorge on a clear, sunny day Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
A March Day - National Parks Gallery
Great Falls on an early spring day, March 29, 2003. Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
The Guard Gate - National Parks Gallery
The Guard Gate could be closed to protect the locks from high water upstream.
Mather Gorge during higher water
Looking upstream through Mather Gorge during higher water Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
Upstream of the Falls - Public Domain image, National Parks Gallery
A stream runs through the canal, upstream of the Falls.
Summer flood before and after - Public Domain image, National Parks Ga...
Before and after photos of the summer flood in 1996. The top photo is the river at normal water level.
Mather Plaque - National parks scenic trails
View of the flood's crest from Mather Plaque on the River Trail.
After Hurricane Ivan - National Parks Gallery
Taken at Mather Plaque on the River Trail, near flood stage.
Northern Water Snake - National Parks Gallery
Northern Water Snake Public domain photograph of an animal, free to use, no copyright restrictions image - Picryl description
C&O Canal's overlook on the Maryland side.
C&O Canal National Park's overlook, on the Maryland side, during the Fran flood.
Twin Fawns in the Picnic Area - Public Domain image, National Parks Ga...
Two fawns grazing in the main picnic area Public domain photograph of a deer, wild animal, wilderness, nature, free to use, no copyright restrictions image - Picryl description
Copperhead in Grass - National Parks Gallery
A copperhead, the only venomous snake found in Great Falls Park.
Whitetail Fawn, National Parks gallery
A whitetail fawn lying in the grass Public domain photograph of wildlife, animals, wilderness, nature, free to use, no copyright restrictions image - Picryl description
Patowmack Canal Lock 1 - Public Domain image, National Parks Gallery
A view of Lock 1 from the downstream end of the lock at Great Falls Park.
High Water Marks pole - Public Domain image, National Parks Gallery
Flood's crest viewed from behind the High Water Mark pole. The water did not get high enough to cover the overlooks.
Debris in Fisherman's Eddy - Public Domain image, National Parks Galle...
Debris floats in Fisherman's Eddy during the flood's crest. Most of it will be left behind as the flood waters recede.
A May Day at the Falls - Public Domain image, National Parks Gallery
Great Falls, taken May 4th, 2003
National parks: Spiderwort - public domain image
Blooms in late spring/ early summer. Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
Blue Phlox, National Parks gallery
Blooms in early spring Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
National parks: Bloodroot - public domain image
White Flower Public domain photograph of a wildflower close up, nature, flowers, free to use, no copyright restrictions image - Picryl description
Great Falls in October - Public Domain image, National Parks Gallery
Great Falls Park in the Fall Picryl description: Public domain photograph of National Park, nature, free to use, no copyright restrictions image.
Red Spotted Purple - National Parks Gallery
A red spotted purple butterfly on the Old Carriage Road trail.
Pearl Crescents - free images of batterflies
Pearl crescent butterflies feeding on wingstem flowers.
Banded Tussock Moth caterpillar
This species has caterpillars that come in many different colors, including yellow, white, brown, and black-and-yellow.
Saddleback Caterpillar, National Parks gallery
These caterpillars can sting, and it's best to avoid handling them. The adult saddleback is a small, brown moth.
November Falls, National Parks gallery
Average water flow, with some storms moving through on November 24, 2012.
Hackberry Emperor, National Parks gallery
A hackberry emperor on Lock 1 of the Patowmack Canal.
Butterfly Social - free images of batterflies
Red spotted purple and pearl crescent butterflies on Lock 1.
Tiger Swallowtail, National Parks gallery
A tiger swallowtail, the state insect of Virginia, sits in a ranger's ballcap.
A river that has a bunch of rocks in it. Great falls park virginia pot...
A river with a waterfall in the background / A waterfall on the side of a river public domain stock photo.
A view of a river with rapids and trees. Great falls park virginia pot...
A river with a waterfall in the background / A river flowing through a rocky area with trees in the background / Public domain photo of a park, nature.
HFCA 1607_Special Events And VIPS Volume 1_464.jpg
NPS employee sitting with visitors at Great Falls Park.
HFCA 1607_Visitors_158.jpg - National Parks Gallery
Visitor in Great Falls Park in Maryland.
DC Area Parks—Great Falls Park, Virginia.
Great Falls Park, Virginia. The rapids along the Potomac River occur where the water flows over the Fall Line, the abrupt boundary between hard metamorphic rocks of the Piedmont Province and soft sedimentary la... More
Transportation defines national park experiences
Three panes showing biker on asphalt trail, kayaker on river near bridge, and hikers on gravel trail.
Great Falls Park GRFA4612
At Great Falls, the Potomac River builds up speed and force as it falls over a series of steep, jagged rocks and flows through the narrow Mather Gorge. The Patowmack Canal offers a glimpse into the early histo... More
Great Falls Park GRFA4606
At Great Falls, the Potomac River builds up speed and force as it falls over a series of steep, jagged rocks and flows through the narrow Mather Gorge. The Patowmack Canal offers a glimpse into the early histo... More
Great Falls Potomac Aerial Old
Aerial view of the Great Falls of the Potomac River.