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Landscape of an Autumn day on the C&O Canal Towpath Trail in Maryland passing by calm waters and a rocky cliff with colorful trees.
Wide shots of the canal along the C&O Trail in Great Falls Maryland
Aerial shot of the small town of Elizabeth, Pennsylvania on a summer morning. The shot includes coal barges on the Monongahela River.
Mammoth Spring SP - Dam & Pool - 1998. Scanned from Kodachrome 64 slide.
One of the canal locks  on the grounds of Chesapeake and Ohio Canal National Historical Park in Maryland n the winter of 2009.
Gear for the locks at bulls Island hunterdon county n.j
Reflections of a dam structure on the Ocoee River in TN.  This part has been backed by the dam creating the lake.
The Trent and Mersey Canal, Kidsgrove, Newcastle-under-Lyme. The water is orange because if clay deposited in the Harecastle Tunnel, landscape seen from towpath.
Georgetown is a historic neighborhood and commercial district of Washington, D.C.
The historic Channahon Lock Number 7 on the I & M canal in morthern Illinois.
Aerial shot of power plant and industrial buildings on the bank of the Allegheny River in Springdale, a town 18 miles north of Pittsburgh in Allegheny County, Pennsylvania on a Fall day.
The Pennyfield Lock has been restored on the C&O Canal and appears in working order except for the leakage. Otherwise, yet another C&O Canal picture in the heat of summer. But it is chained and padlocked, I mean a locked lock, couldn't resist.
Buttermilk Falls State Park near Ithaca
The C&O Canal towpath of the Billy Goat Trail along the Potomac River near the Great Falls in the Chesapeake and Ohio Canal National Historic Park in Maryland.
Red Flag Canal, Linzhou City, Anyang City, Henan Province.\nRed Flag Canal, national AAAAA level tourist attractions, national key cultural relics protection units.\nIn the 1960s, the people of Linzhou City, under extremely difficult conditions, built a water conservancy project from the mountainside of Taihang that shocked the whole country and was called \
hengsteysee lake hagen germany
Rapids of the mountain Nisava River, photographed in Serbia.
Sunny Summer day landscape of a recreational trail in a lush green forest beside the remains of a lock on the Hennepin Canal in Northern Illinois.
coal mine at west virginia
Remains of Lock Number 12 on the historic I and M Canal in Ottawa, Illinois, USA.
C&O Canal NHP - Lock - 1987. Scanned from Kodachrome 64 slide.
Rock Creek Park in Washington DC in early fall
A Bridge and Aqueduct on the C & O Canal Trail in Maryland
Marina with boats on Memphremagog lake during day of summer with railroad in foreground
Chesapeake & Ohio Canal Park
Small industrial town - Holyoke, Massachusetts, USA
Aerial of Stonewall Jackson Dam Weston West Virginia
Bridge at Moonville Tunnel in Ohio in Autumn
Free Images: "bestof:Maintenance Area for C and O Canal at Hancock MD.jpg en Maintenance area in Hancock Maryland National Park Service for that part of the C O Canal own"
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Aerial view of Selawik National Wildlife Refuge wetlands burn area.jpg
Megachile_melanophaea,_side_2012-07-16-18.05.jpg
Restoration Area Sign.jpg
Salem River WMA Wm Smith House.JPG
Ceratina_arizonensis,_side2,_ca,_santa_barbara_2015-04-20-12.16.53_ZS_PMax.jpg
Ceratina_arizonensis,_side,_california,_santa_barbara_2015-04-20-12.12.00_ZS_PMax.jpg
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B327.jpg
B326.jpg
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B327.jpg
Bobcat_kittens_B326_and_B327.jpg
Woodland,_California._Evacuees_of_Japanese_ancestry_are_boarding_a_special_train_for_Merced_Assembl_._._._-_NARA_-_537818.jpg
Fossil_Springs_Trail_No._18.jpg
E.E. Wilson National Wildlife Area.JPG
Coastal area of monomoy national wildlife refuge cape cod.jpg
Charles-F-Mercer-at-Great-Falls-MD.jpg
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frachtschiff-freighter-channel-ship-346280.jpg
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Sun_Point_Weather_Station.jpg
Mountaintop_weather_station.jpg
A-couple-mules-waiting-to-pull-a-boat-in-Great-Falls-MD.jpg
A picture of an area of the John Heinz national wildlife refuge.jpg
Habitat restoration area sign.jpg
Mountain bowl in Noatak area.jpg
Yukon river area Alaska.jpg
Flickr_-_Official_U.S._Navy_Imagery_-_Sailor_plays_soccer_against_the_Olongapo_youth_team..jpg
Watching burned area from sky.jpg
Zuni reservation native American area.jpg
Sailors_play_soccer_130609-N-CB621-103.jpg
Playing_soccer_with_children_in_the_Philippines_120911-N-CB621-247.jpg
Lasioglossum_rozeni,_F,_face,_Frederick_County,_MD_2012-09-18-15.16.jpg
Maryland wildlife sign.JPG
Black cherry 1.JPG
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C-144's_pup_on_porch.jpg
2012.09.09.103103 Sign scenic drive Red Rock Canyon Nevada.jpg
Camping-in-the-Forest.jpg
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BLM_Utah_hosts_annual_Wildland_Engine_Operators_Training_at_Camp_Williams,_Utah.jpg
LithuaniaHistory.png
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CNNF_NGLVC_RX_Burn_5MAY2015.jpg
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Melissodes_lustra,_F,_Side,_CA,_Santa_Barbara_County_2014-06-17-16.35.30_ZS_PMax.jpg
San_Bruno,_California._Maintenance_work,_repair_and_construction_is_done_by_volunteer_evacuee_worke_._._._-_NARA_-_537916.jpg
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Operation_Upshot-Knothole_-_Badger_001.jpg
CNNF_NGLVC_RX_Burn_5MAY2015-4.jpg
CNNF_NGLVC_RX_Burn_5MAY2015-3.jpg
CNNF_NGLVC_RX_Burn_5MAY2015-5.jpg
151021-N-GG458-030.jpg
DORR_MOUNTAIN_HOMAN'S_TRAIL.jpg
SUNSET_OVER_THE_LESLIE_SALT_PONDS_-_NARA_-_544711.jpg
SUNSET_ON_THE_LESLIE_SALT_PONDS_-_NARA_-_544679.jpg
SUNSET_BEHIND_POWER_LINES_IN_GALVESTON_BAY_INDUSTRIAL_AREA_-_NARA_-_543903.jpg
SUNRISE_OVER_SUPERSTITION_MOUNTAINS._URBAN_SPRAWL_AT_THE_APACHE_JUNCTION_AND_MESA_AREA_-_NARA_-_544051.jpg
U.S._Southern_Command_Partnership_of_the_Americas_strategy_DVIDS180328.jpg
Mountain_View,_California._Repairing_truck_on_industrialized_farm_in_Santa_Clara_County,_prior_to_e_._._._-_NARA_-_537606.jpg
Florin,_California._Packing_strawberries_prior_to_evacuation_of_residents_of_Japanese_ancestry_from_._._._-_NARA_-_537846.jpg
Florin,_California._Picking_strawberries_in_irrigated_field_a_few_days_prior_to_evacuation_from_thi_._._._-_NARA_-_537857.jpg
Sacramento,_California._Japanese_Christian_Center_two_days_before_evacuation_of_persons_of_Japanese_._._._-_NARA_-_537867.jpg
The Galactic Center.jpg
SUNSET_ON_THE_LESLIE_SALT_PONDS_-_NARA_-_544675.jpg
M.Nonius Balbus Nuceria equestrian Statue MANN.png
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Melissodes_confusa,_F,_Side,_UT,_Garfield_County_2014-06-17-17.09.jpg
Andrena_caerulea,_f,_face,_Santa_Barbara,_CA_2016-08-12-16.45.jpg
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Inner_Basin_Trail_No._29.jpg
Eloy_District,_Pinal_County,_Arizona._(African-American)_cotton_pickers_ready_to_go_to_work_in_the_f_._._._-_NARA_-_522021.jpg
North_of_Sacramento,_Sacramento_County,_California._Looking_down_from_Natomas_Levee,_outside_the_cit_._._._-_NARA_-_521698.jpg
North_of_Sacramento,_Sacramento_County,_California._Looking_down_from_Natomas_Levee,_outside_the_cit_._._._-_NARA_-_521697.jpg
Airport_tract,_near_Modesto,_Stanislaus_County,_California._One_side_of_Conejo_Street_between_Canal_._._._-_NARA_-_521620.jpg
Olivehurst,_2_miles_south_of_Marysville,_Yuba_County,_California._Squatter_community_of_52_camps,_ag_._._._-_NARA_-_521739.jpg
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