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Swainson Island, MD is a island located in Montgomery County at N38.97039° W77.16859° (NAD83). This is the nearest place in the USGS place names database to the center of the map view below.  Look below the map view for a list of other places and locations that are visible within this map view.  If you need to locate a landmark or feature, you can search for its location on our Find Places page.  If you need to locate a specific USGS topographic map, try our Find Maps page.

USGS Map Name:  Falls Church, VA    Map MRC: 38077H2
Map Center:  N38.97053°  W77.16842°    Datum: NAD83    Zoom: 8m/pixel

Places Within This Map View:
Place Type Coordinates (click to center)
Swainson IslandIslandN38.97039° W77.16859°
Lock 10DamN38.97227° W77.16867°
Lock 9DamN38.97225° W77.16703°
Seven LocksAreaN38.97233° W77.17054°
Dots IslandIslandN38.96761° W77.16998°
Lock 11DamN38.97229° W77.17205°
Dead RunStreamN38.96733° W77.17192°
Wades IslandIslandN38.97039° W77.16276°
Cabin John Census Designated PlaceCensusN38.97404° W77.16345°
Cabin John ParkPopulated PlaceN38.97650° W77.16498°
Carderock ParkParkN38.97733° W77.16609°
Rock Run CulvertCanalN38.97011° W77.17581°
Lock 8DamN38.97088° W77.16090°
Cabin John Post OfficePost OfficeN38.97507° W77.16231°
Plummers IslandIslandN38.96955° W77.17637°
Langley IslandIslandN38.96678° W77.16026°
Winnemanna LodgeLocaleN38.97039° W77.17748°
Lock 12DamN38.97238° W77.17780°
Minnie IslandIslandN38.96900° W77.15859°
Cabin John United Methodist ChurchChurchN38.97400° W77.15887°
Saint George Coptic Orthodox ChurchChurchN38.97581° W77.15957°
Seven Locks ParkParkN38.97928° W77.16276°
American Legion Memorial BridgeBridgeN38.97011° W77.17915°
Interchange 41CrossingN38.97455° W77.17859°
Lock 13DamN38.97221° W77.17941°
Cabin JohnPopulated PlaceN38.97539° W77.15803°
Langley Oaks ParkParkN38.96039° W77.16192°
Lock 14DamN38.97201° W77.18095°
Turkey RunStreamN38.96622° W77.15609°
Carderock Springs Elementary SchoolSchoolN38.98331° W77.17179°
Parkview HillsPopulated PlaceN38.96039° W77.17970°
Booze CreekStreamN38.98150° W77.15720°
Clara Barton Elementary School (historical)SchoolN38.97344° W77.15276°
Langley OaksPopulated PlaceN38.95456° W77.16887°
Rock RunStreamN38.96983° W77.18442°
Gibson Grove ChurchChurchN38.98455° W77.16053°
Interchange 43CrossingN38.96340° W77.18300°
Interchange 14CrossingN38.96344° W77.18304°
Interchange 40CrossingN38.98490° W77.15840°
Langley ForestPopulated PlaceN38.95594° W77.17831°
Carderock SpringsPopulated PlaceN38.98900° W77.16748°
Hermon ChurchChurchN38.98817° W77.17415°
Turkey Run ParkParkN38.96261° W77.15165°
River OaksPopulated PlaceN38.95761° W77.18304°
Stoneyhurst Quarry Number 1MineN38.98917° W77.16194°
Cabin John BridgeBridgeN38.97289° W77.14859°
Langley High SchoolSchoolN38.94990° W77.16619°
KimberleyPopulated PlaceN38.98067° W77.14998°
Cabin John CreekStreamN38.96983° W77.14637°
Thomas BranchStreamN38.99094° W77.15998°
Cedar IslandIslandN38.96900° W77.14637°
George Washington Memorial Parkway HeadquartersBuildingN38.96190° W77.14800°
Saint Johns Episcopal ChurchChurchN38.94955° W77.17651°
Saint Johns ChurchChurchN38.94928° W77.17637°
Saint Luke Serbian Eastern Orthodox ChurchChurchN38.95039° W77.17887°
Claude Moore Colonial FarmParkN38.95194° W77.15500°
Emery CornersPopulated PlaceN38.99233° W77.16109°
The CloistersPopulated PlaceN38.95067° W77.18026°
Ridgemont Montessori SchoolSchoolN38.94760° W77.16509°
Korean Orthodox Presbyterian ChurchChurchN38.94757° W77.16512°
David Taylor Model BasinBasinN38.97400° W77.19137°
Interchange 39CrossingN38.99094° W77.15720°
Stoneyhurst Quarry Number 3MineN38.99278° W77.16028°
Turner-Fairbank Highway Research StationLocaleN38.95567° W77.14942°
Cabin John Park Volunteer Fire Department Station 10BuildingN38.99482° W77.16393°
Naval Surface Warfare Center CarderockMilitaryN38.97450° W77.19286°
Bannockburn EstatesPopulated PlaceN38.98372° W77.14720°
Walter HeightsPopulated PlaceN38.94567° W77.16581°
Friends Meeting ChurchChurchN38.94706° W77.15970°
Cabin John IslandIslandN38.96678° W77.14359°
Toms Run QuarryMineN38.99583° W77.16500°
Reid Family CemeteryCemeteryN38.95515° W77.14787°
River Road SpringSpringN38.99622° W77.16609°
LangleyPopulated PlaceN38.94650° W77.15887°
Primary Day SchoolSchoolN38.98817° W77.14942°

Note: Coordinates listed above are datum selected on the sidebar.
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Map contents:
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Coordinate format:
Nddd.ddd°  Wddd.ddd°
Nddd°mm.m'  Wddd°mm.m'
Nddd°mm' ss"  Wddd° mm' ss"

Draw crosshair at center

Note (5/31/2016) - Want a crosshair at the center coordinates of the map?  A number of people have asked, so that option has been added!

Note (6/26/2013) - Map sizes are now larger, and an extra-large (1280x1280) option has been added as well.

Note (8/18/2010) - The transition to the new TopoQuest server is now complete.  Aside from a glitch that affected the TopoZone alternative map.asp script much of Monday (8/17/2010) afternoon and evening, all went pretty smoothly.  Response time of the TopoQuest website overall should be much snappier, and addition of more 1m satellite / aerial imagery is back underway!

Note (8/2/2010) - Full USGS 1:100K and 1:250K topographic map coverage of the continental US is now completed and online.  Plus, I have the new TopoQuest server under construction with a 9TB RAID6 disk array to continue adding satellite/aerial photo coverage.  Yay!

Note (7/21/2009) - Locations of places of interest (from the USGS placenames database) within the map area you are viewing are now listed below the map when viewing at 64m/pixel or below.  You can click the name of the place to go to its description page, or click the coordinates to recenter your map view on that place.

Note (6/1/2009) - We've started adding 1m/pixel aerial and satellite imagery, starting with Oregon and slowly branching out from there.  Please be patient, it takes a very long time to download and process all this imagery, as well as huge amounts of disk space!

Note (3/07/2009) - We've started adding 1:100K and 1:250K scale USGS topographic maps, starting with southern Oregon and moving out from there.  Coverage will be a bit sparse at first while we crank up automated processing of map tiles at these topographic map scales.  To view 1:100K and 1:250K scale topos, you'll need to manually select them from the sidebar (the Choose Automatically selection will not select these map scales until we have more coverage).  You can use the coverage map types to see what areas we've already processed and have online.  Also note that satellite photo coverage isn't meant to be particularly useful at this point, it's just (very) experimental.

Note (7/31/2008) - We've started adding 1:50K scale topographic maps of Canada, starting with British Columbia.  The Canadian topographic map coverage is still a bit experimental, and integration into the map viewer still needs a little work.  The map viewer will not yet automatically select the 1:50K scale topographic maps, so if you're trying to view maps in Canada, you may need to manually switch to the 1:50K Topo Maps selection in the Map Contents section of the sidebar.

Note (4/15/2008) - With the demise of non-subscription access to TopoZone (now merged with, a subscription service), we're scrambling to process all topographic maps for the US and make them available as quickly as possible.  We now have four Linux PC's crunching map data 24/7 to produce and index map data continuously.  We should be adding approximately fifteen 1 degree x 1 degree blocks of map data (approximately 1000 individual 7.5 minute 1:24000 topo maps) per day.  We're starting with southern Oregon (because that's where we live!) and northern California and branching out from there.

TopoZone URL Replacement
Do you have a Topozone map URL that you want to convert to the TopoQuest equivalent?  Simply replace with in the URL, and you'll get the equivalent map as what Topozone used to produce!  We have more details on using TopoQuest as a Topozone alternative on our Topozone Replacement page.

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