- List of parks in the Baltimore-Washington Metropolitan Area
The largest contiguous public parks-preserves within convert|30|mi|km|0 of either Baltimore, Md. or Washington, D.C.:
#Prince William Forest * - Locust Shade, Virginia convert|18255|acre|km2|0* — *about one-third is generally closed to the public.
#Patuxent Wildlife Research Refuge* - Fran Uhler (Patuxent River Park), Maryland convert|13300|acre|km2|0* — *about one-third is generally closed to the public.
#Seneca Creek - McKee Beshers - C & O Canal - Germantown, Maryland / Algonkian, Virginia convert|12435|acre|km2|0
#Upper Patapsco, Maryland convert|9575|acre|km2|0
#Patuxent River Park - Merkle - Jug Bay Wetlands - House Creek, Maryland convert|8575|acre|km2|0
#Mason Neck - Accotink Bay - Pohick - Meadowood - Gunston**, Virginia convert|7690|acre|km2|0
#Patuxent River State Park , Maryland convert|6650|acre|km2|0
#Sugarloaf Mountain** -Monocacy River - C & O Canal, Maryland convert|5790|acre|km2|0
#Lower Gunpowder Falls, Maryland convert|5325|acre|km2|0
#Chapmans - Myrtle Grove - Mattawoman, Maryland convert|5305|acre|km2|0
#Manassas Battlefield, Virginia convert|4355|acre|km2|0
#Little Bennett, Maryland convert|3700|acre|km2|0
#Great Falls, Virginia - C & O Canal, Maryland - Riverbend, Virginia - Scotts Run, Virginia - Carderock, Maryland convert|3440|acre|km2|0
#Lower Patapsco - Rockburn Branch, Maryland convert|3435|acre|km2|0
#Cedarville, Maryland convert|2848|acre|km2|0
#Smithsonian Environmental Research Center ** Maryland convert|2800|acre|km2|0 - limited public access
#Upper Gunpowder Falls (Hereford), Maryland convert|2755|acre|km2|0
#Rock Creek Regional (Lake Needwood - North Branch) 2670 acres
#Susquehanna State Park, Maryland convert|2645|acre|km2|0
#Fountainhead, Virginia convert|2450|acre|km2|0
#Nanjemoy Creek**, Maryland convert|2415|acre|km2|0 - generally closed to the public
#Mid-Gunpowder Falls (Baldwin-Fork), Maryland convert|2300|acre|km2|0
#Eastern Neck , Maryland convert|2285|acre|km2|0
#Broad Creek** (Harford County), Maryland convert|2005|acre|km2|0 - generally closed to the public
#Douglas Point - Mallows Bay -Purse State Park (Nanjemoy Wildlife Area), Maryland convert|1920|acre|km2|0.....25.Soldiers Delight , Maryland convert|1920|acre|km2|0Rock Creek Park , D.C. - convert|1750|acre|km2|0:"** quasi-public"
This list does not include interrupted, scattered parts of administrative units, but rather entire, contiguous park-preserve tracts. All contiguous public park-preserve land is included in the above areas, but strip park area (<1000 foot (300 m) width for more than 1/2 mile (800 m)) and public utility land (reservoirs) are excluded.) Much of the convert|72500|acre|km2|0
Aberdeen Proving Grounds , Maryland. and convert|56000|acre|km2|-1Quantico Marine Base , Virginia are undeveloped, and constitute the largest such areas within convert|30|mi|km|0 of either Baltimore or Washington. Neither is generally open to the public. Quantico is contiguous with Prince William Forest Park. Washington and Baltimore are convert|33|mi|km|0s apart.External links
* [http://www.patc.net/hiking/destinations/pwfp.html Prince William Forest Park]
* [http://www.pwcparks.org/locust/ Locust Shade Park]
* [http://www.patuxent.fws.gov Patuxent Wildlife Research Refuge]
* [http://www.pgparks.com/places/parks/fran.html Fran Uhler Natural Area]
* [http://www.dnr.state.md.us/publiclands/central/seneca.html Seneca Creek State Park]
* [http://www.dnr.state.md.us/publiclands/central/mb.html McKee Beshers Wildlife Area]
* [http://www.fred.net/kathy/canal.html Chesapeake and Ohio Canal]
* [http://www.mc-mncppc.org/parks/facilities/south_germantown/index.shtm South Germantown Park]
* [http://www.nvrpa.org/algonkian.html Algonkian Park]
* [http://www.dnr.state.md.us/publiclands/central/patapscovalley.html Patapsco Valley State Park]
* [http://www.pgparks.com/places/parks/patuxent.html Patuxent River Park]
* [http://www.dnr.state.md.us/publiclands/southern/merkle.html Merkle Wildlife Sanctuary]
* [http://www.jugbay.org Jug Bay Wetlands Sanctuary]
* [http://www.patc.net/hiking/destinations/masn_sp.html Mason Neck]
* [http://www.nvrpa.org/pohickbay.html Pohick Bay Park]
* [http://www.gunstonhall.org/ Gunston Hall]
* [http://www.es.blm.gov/lands/meadowood/index.asp Meadowood Recreation Area]
* [http://www.dnr.state.md.us/publiclands/central/patuxentriver.html Patuxent River State Park]
* [http://www.patc.net/hiking/destinations/sug_loaf.html Sugarloaf Mountain]
* [http://www.localhikes.com/Hikes/MonocacyNRA_8872.asp Monocacy Wildlife Area]
* [http://www.dnr.state.md.us/publicland/central/gunpowderfalls.html Gunpowder Falls State Park]
* [http://www.molehill.us:8080/ararat/chapman/index.html Chapman Forest]
* [http://www.chapmanforest.org/Welcome.html Chapman Forest]
* [http://www.dnr.state.md.us/publiclands/southern/myrtlegrove.asp Myrtle Grove Wildlife Area]
* [http://www.dnr.state.md.us/greenways/counties/charles.html Mattawoman Natural Area]
* [http://www.nps.gov/mana/ Manassas Battlefield]
* [http://www.mc-mncppc.org/parks/enterprise/park_facilities/little_bennett/index.shtm Little Bennett Park]
* [http://www.patc.net/hiking/destinations/grt_falls.html Great Falls, Va.]
* [http://www.nps.gov/grfa/ Great Falls Park, Va.]
* [http://www.co.fairfax.va.us/parks/riverbend/index.htm Riverbend Park]
* [http://www.localhikes.com/Hikes/Scotts_Run_8872.asp Scotts Run Preserve]
* [http://bikewashington.org/parking/carderock/ Carderock Recreation Area]
* [http://www.co.ho.md.us/RAP/RAP_HoCoParksRockburn.htm Rockburn Branch Park]
* [http://www.dnr.state.md.us/publiclands/southern/cedarville.html Cedarville State Forest]
* [http://www.serc.si.edu/ Smithsonian Environmental Research Center]
* [http://www.mc-mncppc.org/parks/facilities/regional_parks/rockcreek/index.shtm Rock Creek Park, Md.]
* [http://www.dnr.state.md.us/publiclands/central/susquehanna.html Susquehanna State Park]
* [http://www.nvrpa.org/fountainhead.html Fountainhead Park]
* [http://www.dnr.state.md.us/greenways/counties/montgomery.html North Branch Park]
* [http://nature.org/wherewework/northamerica/states/maryland/preserves/art4812.html Nanjemoy Creek Preserve]
* [http://easternneck.fws.gov Eastern Neck Wildlife Refuge]
* [http://www.es.blm.gov/lands/lowerpotomac/index.asp Douglas Point/Mallows Bay (Nanjemoy Wildlife Area)]
* [http://www.dnr.state.md.us/resourceplanning/nanjemoy.html Douglas Point/Mallows Bay (Nanjemoy Wildlife Area)]
* [http://www.dnr.state.md.us/publiclands/southern/purse.html Purse State Park]
* [http://www.dnr.state.md.us/publiclands/soldiers.html Soldiers Delight Natural Area]
* [http://www.nps.gov/rocr/ Rock Creek Park, D.C.]
* [http://www.apg.army.mil/ Aberdeen Proving Grounds]
* [http://www.quantico.usmc.mil/ Quantico Marine Base]
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