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Geography Home Browse by State Browse by Feature Definitions Top 10 |
| Maryland Dam |
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|
Feature Name
|
County
|
Latitude
|
Longitude
|
| Allen Pond Dam | Prince George's | 38.9325 | -76.7425 |
| Allentown Pond Dam | Wicomico | 38.28333 | -75.68833 |
| Annapolis Reservoir Dam | Baltimore | 38.98833 | -76.56667 |
| Atkisson Dam | Harford | 39.47667 | -76.33944 |
| Back Creek Dam | Cecil | 39.51333 | -75.78167 |
| Baron Pond Dam | Wicomico | 38.46194 | -75.735 |
| Barton Debris Basin Dam | Garrett | 39.54167 | -79.03333 |
| Beaglin Park Dam | Wicomico | 38.35333 | -75.57333 |
| Big Millpond Dam | Worcester | 38.0225 | -75.46056 |
| Big Piney Run Dam | Garrett | 39.705 | -79.01 |
| Bittinger Farm Pond Dam | Garrett | 39.62667 | -79.01333 |
| Black and Decker Manufacturing Company Dam | Carroll | 39.66667 | -77.00833 |
| Blairs Valley Dam | Washington | 39.695 | -77.94167 |
| Bloede Dam | Baltimore | 39.24667 | -76.76167 |
| Bloomington Dam | Garrett | 39.40167 | -78.875 |
| Bohemia Mills Dam | Cecil | 39.465 | -75.775 |
| Bond Farm Pond Dam | Frederick | 39.565 | -77.54167 |
| Bowens Farm Pond Dam | Calvert | 38.505 | -76.615 |
| Boyd Farm Pond Dam | Talbot | 38.91667 | -76.075 |
| Briar Ridge Farm Pond Dam | Harford | 39.60667 | -76.52167 |
| Brighton Dam | Howard | 39.19278 | -77.00556 |
| Broadford Dam | Garrett | 39.40778 | -79.37083 |
| Broadford Mountain Lake Dam | Garrett | 39.4 | -79.37167 |
| Browning Dam | Garrett | 39.51833 | -79.45889 |
| Bunting Branch Dam | Worcester | 38.45167 | -77.2 |
| Burba Lake Dam | Anne Arundel | 39.095 | -76.73667 |
| Campus Hills Pond Dam | Harford | 39.555 | -76.275 |
| Carpenter Farm Pond Dam | Kent | 39.18167 | -76.23167 |
| Cascade Lake Dam | Carroll | 39.61667 | -76.88833 |
| Cash Creek Dam | Prince George's | 39.03667 | -76.79167 |
| Chesapeake Ranch Club Dam | Calvert | 38.36333 | -76.41667 |
| Chestertown Stabilization Pond Number 1 Dam | Kent | 39.20167 | -76.07833 |
| Chestertown Stablization Pond Number Two Dam | Kent | 39.20333 | -76.07833 |
| Churchill Town Sector Dam | Montgomery | 39.18833 | -77.28333 |
| Clear Spring Water Reservoir Dam | Baltimore | 39.25833 | -76.70667 |
| Clinton Regional Park Dam | Prince George's | 38.73333 | -76.91667 |
| Columbia Lng Secondary Dam | Calvert | 38.39 | -76.41667 |
| Conowingo Dam | Cecil | 39.66083 | -76.17361 |
| Contee Main Settling Pond Dam | Prince George's | 39.07 | -76.91 |
| County Home Farm Pond Dam | Carroll | 39.55667 | -76.99667 |
| Court House Point Disposal Area Dam | Cecil | 39.50167 | -75.875 |
| Cranberry Branch Dam | Carroll | 39.60333 | -77.95833 |
| Dam Number 3 | Washington | 39.33389 | -77.75139 |
| Dam Number 4 | Washington | 39.49444 | -77.82722 |
| Dam Number 5 | Washington | 39.60611 | -77.92306 |
| Damazo Pond Dam | Frederick | 39.36167 | -77.64167 |
| Damiels Dam | Baltimore | 39.315 | -76.82 |
| Deep Creek Hydro-Electric Dam | Garrett | 39.50944 | -79.39139 |
| Disposal Area 18 Dam | Cecil | 39.525 | -75.79167 |
| Disposal Area Number 19 Dam | Cecil | 39.525 | -75.82833 |
| Disposal Area Number 21 Dam | Cecil | 39.54167 | -75.84167 |
| Don Pleasant Dam | Allegany | 39.63 | -78.58667 |
| Druid Hill Lake Dam | Baltimore (city) | 39.3 | -76.62667 |
| Easton Primary Sewage Lagoon Dam | Talbot | 38.74667 | -76.01833 |
| Easton Secondary Sewage Lagoon Dam | Talbot | 38.74833 | -76.01667 |
| Edgewater Village Dam | Harford | 39.43333 | -76.305 |
| Elgin Farm Pond Dam | Kent | 39.27 | -76.08 |
| Emmitsburg Dam | Frederick | 39.695 | -77.38833 |
| Fairlee Lake Dam | Kent | 39.24667 | -76.17 |
| Fishing Creek Dam | Frederick | 39.525 | -77.46167 |
| Foreman Branch Dam | Queen Anne's | 39.235 | -76.99 |
| Forks Pond Dam | Wicomico | 38.33 | -75.59833 |
| Frazers Lake Dam | Cecil | 39.43667 | -75.885 |
| Galestown Millpond Dam | Dorchester | 38.56833 | -75.715 |
| Goose Dam | Dorchester | 38.47 | -76.25417 |
| Gordon Farm Pond Dam | Calvert | 38.595 | -76.57833 |
| Great Falls Estate Dam | Montgomery | 39.01667 | -77.23333 |
| Green Brier State Park Dam and Dike | Washington | 39.54167 | -77.625 |
| Greenbelt Dam | Prince George's | 39 | -76.9 |
| Greenbriar State Park Dike Dam | Washington | 39.54167 | -77.625 |
| Grove Point Disposal Area Dam | Cecil | 39.38833 | -76.02 |
| Guard Lock Number 5 | Washington | 39.50278 | -77.84556 |
| Guilford Reservoir Dam | Baltimore (city) | 39.34833 | -76.61667 |
| Hancock Sewage Lagoon Dam | Washington | 39.705 | -78.155 |
| Haul Road Dam | Frederick | 39.42833 | -77.32667 |
| Heritage Harbour Site One Dam | Anne Arundel | 38.97667 | -76.59167 |
| Herrington Creek Dam | Garrett | 39.45833 | -79.45667 |
| Higgins Millpond Dam | Dorchester | 38.51833 | -75.965 |
| Hunting Creek Dam | Frederick | 39.62833 | -77.46 |
| Hurlock Oxidation Ponds Dam | Dorchester | 38.61 | -75.84333 |
| Inspiration Lake Dam | Montgomery | 39.11667 | -77.24 |
| Jameson Dam | Charles | 38.51333 | -76.80833 |
| Johns Hopkins University Dam | Howard | 39.24167 | -76.93667 |
| Johnson Dam | Wicomico | 38.375 | -75.6 |
| Jones Lake Dam | Queen Anne's | 39.24667 | -75.81833 |
| Kemp Farm Pond Dam | Garrett | 39.71833 | -79.43 |
| Lake Ashburton Dam | Baltimore (city) | 39.32 | -76.6675 |
| Lake Bonnie Dam | Caroline | 39.02 | -75.77667 |
| Lake Elkhorn Dam | Howard | 39.18333 | -76.84667 |
| Lake Jenkins Dam | Washington | 39.63722 | -78.30472 |
| Lake Jennifer Dam | Frederick | 39.41167 | -77.15833 |
| Lake Kittamagundi Dam | Howard | 39.2 | -76.84833 |
| Lake Lanahen Dam | Washington | 39.64056 | -78.30333 |
| Lake Linganore Dam | Frederick | 39.415 | -77.29333 |
| Lake Louise Dam | Garrett | 39.68972 | -79.22861 |
| Lake Montebello Dam | Baltimore (city) | 39.33111 | -76.58472 |
| Lake of the Pines Dam | Anne Arundel | 38.96667 | -76.64167 |
| Lake Placid Dam | Montgomery | 39.11056 | -77.23611 |
| Lake Roland Dam | Baltimore (city) | 39.37861 | -76.64361 |
| Lake Walker Dam | Montgomery | 39.16833 | -77.20833 |
| Lake Walker-Pond Number Two Dam | Montgomery | 39.15667 | -77.20833 |
| Lake Waterford Dam | Anne Arundel | 39.11333 | -76.555 |
| Lake Whetstone Dam | Montgomery | 39.16833 | -77.20833 |
| Ledford Farm Pond Dam | St. Mary's | 38.33 | -76.71167 |
| Leonard Pond Dam | Wicomico | 38.42333 | -75.56667 |
| Liberty Dam | Baltimore | 39.37667 | -76.89083 |
| Little Deer Creek Watershed Site Number 3 Dam | Harford | 39.61667 | -76.53333 |
| Little Falls Dam | Montgomery | 38.94889 | -77.12861 |
| Little Youghiogheny River Site Number 2 Dam | Garrett | 39.425 | -79.39167 |
| Little Youghiogheny River Site Number 5 Dam | Garrett | 39.375 | -79.375 |
| Little Youghiogheny River Site Number 7 Dam | Garrett | 39.42333 | -79.305 |
| Little Youghiogheny Site Number 1 Dam | Garrett | 39.41333 | -79.4 |
| Loch Raven Dam | Baltimore | 39.43028 | -76.54389 |
| Lock 10 | Montgomery | 38.97222 | -77.16861 |
| Lock 11 | Montgomery | 38.97222 | -77.17222 |
| Lock 12 | Montgomery | 38.97222 | -77.17806 |
| Lock 13 | Montgomery | 38.97222 | -77.17972 |
| Lock 14 | Montgomery | 38.97194 | -77.18111 |
| Lock 15 | Montgomery | 38.98917 | -77.24444 |
| Lock 16 | Montgomery | 38.99194 | -77.24444 |
| Lock 17 | Montgomery | 38.99611 | -77.24833 |
| Lock 18 | Montgomery | 38.9975 | -77.24861 |
| Lock 19 | Montgomery | 38.99833 | -77.24889 |
| Lock 22 | Montgomery | 39.05361 | -77.28917 |
| Lock 23 | Montgomery | 39.06694 | -77.32917 |
| Lock 24 | Montgomery | 39.06861 | -77.34056 |
| Lock 25 | Montgomery | 39.10333 | -77.4725 |
| Lock 26 | Montgomery | 39.19056 | -77.47167 |
| Lock 30 | Frederick | 39.31139 | -77.63028 |
| Lock 31 | Washington | 39.32917 | -77.68083 |
| Lock 32 | Washington | 39.32389 | -77.71889 |
| Lock 33 | Washington | 39.32472 | -77.72722 |
| Lock 34 | Washington | 39.33278 | -77.73861 |
| Lock 37 | Washington | 39.38528 | -77.73528 |
| Lock 38 | Washington | 39.43528 | -77.79861 |
| Lock 39 | Washington | 39.44389 | -77.78389 |
| Lock 40 | Washington | 39.48611 | -77.77778 |
| Lock 45 | Washington | 39.60083 | -77.82806 |
| Lock 5 | Montgomery | 38.94 | -77.1225 |
| Lock 51 | Washington | 39.69306 | -78.14889 |
| Lock 52 | Washington | 39.69389 | -78.15667 |
| Lock 53 | Washington | 39.65083 | -78.24222 |
| Lock 54 | Washington | 39.62472 | -78.29167 |
| Lock 55 | Washington | 39.62583 | -78.29417 |
| Lock 56 | Washington | 39.63611 | -78.325 |
| Lock 57 | Allegany | 39.62778 | -78.36389 |
| Lock 58 | Allegany | 39.61722 | -78.395 |
| Lock 59 | Allegany | 39.60667 | -78.42944 |
| Lock 6 | Montgomery | 38.94472 | -77.12417 |
| Lock 60 | Allegany | 39.58333 | -78.39889 |
| Lock 61 | Allegany | 39.59139 | -78.44167 |
| Lock 67 | Allegany | 39.52556 | -78.53306 |
| Lock 68 | Allegany | 39.53028 | -78.58806 |
| Lock 69 | Allegany | 39.53917 | -78.60139 |
| Lock 7 | Montgomery | 38.96444 | -77.13917 |
| Lock 70 | Allegany | 39.5425 | -78.61972 |
| Lock 71 | Allegany | 39.54528 | -78.62472 |
| Lock 72 | Allegany | 39.57278 | -78.72861 |
| Lock 73 | Allegany | 39.58722 | -78.73333 |
| Lock 74 | Allegany | 39.58806 | -78.735 |
| Lock 8 | Montgomery | 38.97083 | -77.16111 |
| Lock 9 | Montgomery | 38.97222 | -77.16722 |
| Lock Number 28 | Frederick | 39.28167 | -77.54778 |
| Lock Number 29 | Frederick | 39.30639 | -77.55861 |
| Lock Number 35 | Washington | 39.33667 | -77.75167 |
| Lock Number 36 | Washington | 39.33694 | -77.75333 |
| Lock Number 45 | Washington | 39.61361 | -77.92611 |
| Lock Number 46 | Washington | 39.61556 | -77.92722 |
| Lock Number 47 | Washington | 39.61722 | -77.94722 |
| Lock Number 48 | Washington | 39.61639 | -77.94778 |
| Lock Number 49 | Washington | 39.615 | -77.94861 |
| Lock Number 50 | Washington | 39.61417 | -77.94889 |
| Lower Lake Royer Dam | Washington | 39.71028 | -77.49611 |
| Maple Dam (historical) | Dorchester | 38.51639 | -76.08139 |
| Maryland Noname 3 Dam | Dorchester | 38.675 | -75.88333 |
| Mason Dixon Original Settling Pond Dam | Cecil | 39.61 | -76.02833 |
| Mason-Dixon Sand and Gravel Company of Pennsylvania Dam | Cecil | 39.62167 | -76.04167 |
| Mason-Dixon Settling Pond Number Five Dam | Cecil | 39.61667 | -76.02 |
| Mason-Dixon Settling Pond Number Four Dam | Cecil | 39.61667 | -76.02 |
| Mason-Dixon Settling Pond Number One Dam | Cecil | 39.61333 | -76.02333 |
| Mason-Dixon Settling Pond Number Six Dam | Cecil | 39.61667 | -76.015 |
| Mason-Dixon Settling Pond Number Three Dam | Cecil | 39.61333 | -76.01833 |
| Mason-Dixon Settling Pond Number Two Dam | Cecil | 39.61333 | -76.01833 |
| McAllister Pond Number One Dam | Charles | 38.52667 | -76.93333 |
| McComas Dam | Garrett | 39.45667 | -79.465 |
| Mdnoname1 Dam | Washington | 39.64167 | -77.575 |
| Meadow Run Dam | Garrett | 39.68667 | -79.10833 |
| Meadowlake Dam | Frederick | 39.41667 | -77.32667 |
| Mezick Farm Pond Dam | Queen Anne's | 39.01833 | -76.11333 |
| Montebello Waste Water Lake Dam | Baltimore (city) | 39.33667 | -76.58333 |
| Morgan Creek Branch Dam | Kent | 39.28333 | -76.03333 |
| Morris Mill Pond Dam | Wicomico | 38.325 | -75.60333 |
| Myrtle Grove Lake Dam | Charles | 38.565 | -77.08167 |
| Nagels Mill Pond Dam | Caroline | 38.77833 | -75.87333 |
| New Germany State Park Dam | Garrett | 39.63333 | -79.12167 |
| Nirvana Dam | Montgomery | 39.11833 | -77.24667 |
| North Creek Dam | Montgomery | 39.19333 | -77.19833 |
| Northampton Lake Dam | Prince George's | 38.9 | -76.80833 |
| Octoraro Lakes Dam | Cecil | 39.70167 | -76.12667 |
| Oliver Co Dam | Washington | 39.72167 | -77.89833 |
| Owings Farm Pond Dam | Queen Anne's | 39.18167 | -76.005 |
| Panagopulos Farm Pond Dam | Cecil | 39.44833 | -75.93833 |
| Parker Pond Dam | Wicomico | 38.34667 | -75.54833 |
| Paul Roeder Farm Pond Dam | Allegany | 39.52833 | -78.545 |
| Pearce Creek Disposal Area Dam | Cecil | 39.43167 | -75.98333 |
| Pecks Branch Dam | Baltimore (city) | 39.32333 | -76.67167 |
| Piedmon Dam | Garrett | 39.50083 | -79.11528 |
| Piedmont Dam | Garrett | 39.50083 | -79.11444 |
| Pikesville Reservoir Dam | Baltimore | 39.385 | -76.73 |
| Piney Run Dam | Carroll | 39.38333 | -76.98333 |
| Pinto Utilities Dam | Allegany | 39.585 | -78.86167 |
| Pleasant Valley Run Dam | Garrett | 39.56833 | -79.24667 |
| Pocomoke City Sewage Lagoon Number One Dam | Worcester | 38.05167 | -75.56667 |
| Pocomoke City Sewage Lagoon Number Two Dam | Worcester | 38.04833 | -75.565 |
| Pond Number 3 Dam | St. Mary's | 38.27333 | -76.41667 |
| Pond Number Three Dam | St. Mary's | 38.26833 | -76.42167 |
| Potomac River Dam Number 3 | Washington | 39.33333 | -77.75167 |
| Potomac River Dam Number Four | Washington | 39.495 | -77.825 |
| Powellvilles Dam | Wicomico | 38.33333 | -75.375 |
| Prettyboy Dam | Baltimore | 39.61972 | -76.70806 |
| Redington Lake Dam | Prince George's | 39.02667 | -76.79667 |
| Rewastico Pond Dam | Wicomico | 38.41167 | -75.75333 |
| Riggs Farm Pond Dam | Howard | 39.28167 | -77.05167 |
| Rising Sun Waste Water Lagoon Dam | Cecil | 39.70667 | -76.08 |
| Rock Ridge Pond Dam | Harford | 39.66667 | -76.35333 |
| Rocky Gap Dam | Allegany | 39.70167 | -78.66167 |
| Rocky Gorge Dam | Prince George's | 39.23333 | -76.875 |
| Saint Clair Farm Pond Dam | Frederick | 39.34167 | -77.225 |
| Saint Marys River Watershed Number 1 Dam | Allegany | 38.25167 | -76.535 |
| Saint Pauls Millpond Dam | Kent | 39.185 | -76.17667 |
| Savage Dam | Howard | 39.13639 | -76.83278 |
| Savage River Dam | Garrett | 39.5075 | -79.13306 |
| Seafern Recreation Lake Dam | Anne Arundel | 39.005 | -76.54167 |
| Shad Point Bridge Dam | Wicomico | 38.33333 | -75.60833 |
| Shores of Clvert Dam Number One | Calvert | 38.74 | -76.68 |
| Smithville Lake Dam | Caroline | 38.76667 | -75.76667 |
| Soldier Lake Dam | Anne Arundel | 39.08167 | -76.73333 |
| Stancills Inc Settling Pond Dam | Cecil | 39.56833 | -76.03167 |
| Starners Dam | Carroll | 39.69833 | -77.21583 |
| Swains Lock | Montgomery | 39.03139 | -77.24361 |
| Talbot Country Club Pond Dam | Talbot | 38.72167 | -76.095 |
| Trinity Church Dam | Charles | 38.45833 | -76.85833 |
| Tuckahoe State Park Dam | Caroline | 38.96667 | -75.94333 |
| Unicorn Branch Dam | Queen Anne's | 39.25 | -75.86667 |
| Union Dam | Baltimore | 39.295 | -76.78 |
| Upper Pinehurst Dam | Frederick | 39.415 | -77.29333 |
| Upper Rock Creek Watershed Site Number 1 Dam | Montgomery | 39.10333 | -77.11861 |
| Upper Rock Creek Watershed Site Number 5 Dam | Montgomery | 39.1 | -77.12667 |
| Urbana Dam | Frederick | 39.3 | -77.34 |
| Warners Gap Hollow Dam | Washington | 39.66167 | -77.545 |
| Watts Farm Pond Dam | Kent | 39.29 | -76.11167 |
| Wheately Dam | Charles | 38.48667 | -76.85833 |
| Wheaton Regional Park Dam | Montgomery | 39.05833 | -77.04167 |
| Williamsport Power Plant Dam | Washington | 39.595 | -77.83 |
| Williston Mill Dam | Caroline | 38.83056 | -75.84667 |
| Wye Mills Dam | Queen Anne's | 38.93833 | -76.08167 |
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