roosevelt island disambiguation . theodore roosevelt island national memorial the 17 foot centerpiece statue location within washington d.c. location washington d.c. u.s. coordinates 38 53 50 n 77 3 51 w 38.89722 n 77.06417 w 38.89722 ; 77.06417 coordinates 38 53 50 n 77 3 51 w 38.89722 n 77.06417 w 38.89722 ; 77.06417 area 88.5 acres 35.81 ha established may 21 1932 visitors 111 879 in 2005 governing body national park service website theodore roosevelt island theodore roosevelt island is a 88.5 acre 358 000 m2 island and a national memorial located in the potomac river in washington d.c. 1 2 the island was given to the american people by the theodore roosevelt association in memory of the 26th u.s. president theodore roosevelt ; before that the island had been known as my lord s island barbadoes island mason s island analostan island and anacostine island . 3 the island is maintained by the national park service as part of the nearby george washington memorial parkway . 2 the land is generally maintained as a natural park with various trails and a memorial plaza featuring a statue of roosevelt . no cars or bicycles are permitted on the island which is reached by a footbridge from arlington virginia on the western bank of the potomac . in the 1930s landscape architects transformed mason s island from neglected overgrown farmland into theodore roosevelt island a memorial to america s 26th president . they conceived a real forest designed to mimic the natural forest that once covered the island . today miles of trails through wooded uplands and swampy bottomlands honor the legacy of a great outdoorsman and conservationist . 4 a small island named little island lies just off the southern tip ; georgetown and the john f. kennedy center for the performing arts are across the main channel of the potomac to the north and east respectively . contents 1 history 2 national park and memorial 3 geography and natural history 4 access 5 in popular culture 6 see also 7 references 8 external links history edit only the foundation remains of the mason house seen here in a 19th century photograph the nacotchtank indians formerly of what is now anacostia in washington d.c. temporarily moved to the island in 1668 giving its first recorded name anacostine . the island was patented in 1682 as anacostine island by captain randolph brandt or brunett who left the island to his daughter margaret hammersley upon his death in 1698 or 1699 . 5 6 the island was acquired by george mason iii in 1724 . 7 george mason iv acquired the island in 1735 upon the death of his father and john mason the son of george mason iv inherited the island in 1792 and owned it until 1833 . 5 john mason built a mansion around 1796 and planted gardens there in the early 19th century . the masons left the island in 1831 when a causeway stagnated the water . following mason s death in 1842 john carter acquired the land . 6 after carter died in 1851 the island passed to william a. bradley . 6 contraband quarters mason s island the island has been uninhabited since the masons left aside from a brief period in the civil war when union troops were stationed there . locals continued to call it mason s island until the memorial was built there . 8 the island was bought by the theodore roosevelt memorial association in 1931 . the congress authorized the memorial and later provided the appropriate funding in 1960 . the memorial was officially dedicated in 1967 . in 1869 a fire destroyed the mansion s interior ; around 1906 another fire caused the roof to collapse . 5 following the declaration of war against spain in 1898 the island was used as a test site for a number of private experiments in electrical ignition of the explosives dynamite and jovite led by the chemist charles edward munroe of columbian university . 9 monroe s experiments which explored the use of the explosives for mining waterways and roadways and preparing ground for rapid entrenchment were conducted in secret and without alerting the district of columbia police department which investigated citizens reports of spanish spy activity and found the explosives and detonators buried on the island . 9 10 the island was called analostan by indians . lord baltimore granted the island to captain randolf brant in 1681 and brant renamed the island barbados . after it was purchased by george mason in 1717 it came to be known as mason s island . from 1913 to 1931 the island was owned by the washington gas light company which allowed vegetation to grow unchecked on the island . 5 by 1935 the civilian conservation corps had cleared much of the island and pulled down the remaining walls of the house ; today only part of the mansion s foundation remains . national park and memorial edit in 1931 the theodore roosevelt memorial association purchased the island from the gas company with the intention of erecting a memorial honoring roosevelt . 5 congress authorized the memorial on may 21 1932 but did not appropriate funds for the memorial for almost three decades . funds were finally designated by congress in 1960 . as with all historic areas administered by the national park service the national memorial is listed on the national register of historic places ; the listing first appeared on october 15 1966 . the fountain on theodore roosevelt island and the statue in the background the memorial was dedicated on october 27 1967 . 11 designed by eric gugler the memorial includes a 17 foot 5 m statue by sculptor paul manship four large stone monoliths with some of roosevelt s more famous quotations and two large fountains . geography and natural history edit the potomac river surrounding the island is at sea level part of the chesapeake bay estuary with the river water fresh but tidal . a narrow channel unofficially referred to as little river by local users of the potomac river separates the island from the virginia bank of the potomac with the main channel of the potomac between the island and georgetown part of washington d.c. surrounding scenery includes the potomac gorge and key bridge georgetown rosslyn and the kennedy center . the virginia state line follows the southern bank of the river so despite the fact that the primary access to the island is from virginia the island itself is entirely in the district of columbia . the rocky western upriver and central portions of the island are part of the piedmont plateau while the southeastern part is within the atlantic coastal plain . at one point opposite georgetown the atlantic seaboard fall line between the piedmont and the coastal plain can be seen as a natural phenomenon . the island has about 2.5 mile 4.0 km of shoreline 2 and the highest area of the island where the mason mansion stood is about 44 feet 13 m above sea level . spring floods coming down the potomac from appalachia inundate low lying portions of island s shores regularly usually several times each year while much larger floods often from intense widespread rainfall from tropical storms flood the island more deeply several times a century . storm surges coming up the potomac from hurricanes or other coastal storm systems also cause occasional major floods affecting the island . the island s vegetation is quite diverse for a relatively small area due to its geological and topographic variety the frequency of floods its land use history including various periods of landscaping and its location in an urban area in which many non native species occur . most of the island is deciduous forest of various kinds including uplands riparian shores and swamps . there is also an area of fresh water tidal estuarine marsh and a few small bedrock outcrops of metamorphic piedmont rock some along the tidal shore . the variety of freshwater estuarine intertidal habitats along the island s shores is particularly notable . the island is particularly known for its variety of birds and its showy displays of spring wildflowers . however dozens of non native invasive plants have become abundant there often outcompeting the native species . access edit the footbridge to the island theodore roosevelt island is accessible by a footbridge from a parking lot along the virginia bank of the potomac river just north of the theodore roosevelt bridge which crosses but does not allow access to the island . cars can enter this parking lot only from the northbound lanes of the george washington memorial parkway . pedestrians and bicyclists can reach the parking lot and footbridge by following the mount vernon trail south from the intersection of lee highway and n. lynn st. in rosslyn near key bridge . the closest washington metro station to the island is the rosslyn station . 12 several hiking trails provide access to the memorial and a variety of the island s natural habitats including a boardwalk through a swampy and marshy area . 2 in popular culture edit theodore roosevelt island was shown in the 2014 movie captain america the winter soldier as the site of the fictional headquarters of the s.h.i.e.l.d. spy agency . 13 see also edit list of islands of the united states list of islands on the potomac river references edit national park service . listing of area as of 09 30 2005 pdf . retrieved may 5 2006 . a b c d theodore roosevelt island . u.s. national park service . retrieved 25 june 2011 . theodore roosevelt island . u.s. geographic survey geographic names information system . retrieved 2009 01 13 . theodore roosevelt island u.s. national park service . www.nps.gov . retrieved 2016 02 29 . a b c d e curry mary e. 1971 1972 . theodore roosevelt island a broken link to early washington d.c. history . records of the columbia historical society . a b c proctor john clogett 1949 . proctor s washington and environs . john clogett proctor ll.d . p. 98 . james w. foster potomac river maps of 1737 by robert brooke and others william and mary college quarterly historical magazine 2nd ser . vol . 18 no. 4 . october 1938 410 . theodore roosevelt island . worldsiteguides.com . retrieved 2016 02 29 . a b brooks edward m. 21 may 1898 . trials with explosives . boston evening transcript . retrieved 14 august 2014 . theodore roosevelt island washington dc . www.worldislandinfo.com . retrieved 2016 02 29 . the national parks index 2001 2003 . washington u.s. department of the interior . nps theodore roosevelt island . merchant canaan february 7 2014 . captain america obliterates rosslyn and roosevelt island . greater greater washington . retrieved july 16 2015 . external links edit wikimedia commons has media related to theodore roosevelt island . official website theodore roosevelt association historic american landscapes survey hals no . dc 12 theodore roosevelt island historic american buildings survey habs no . dc 28 general john mason house formerly located on island friends of theodore roosevelt island v t e theodore roosevelt 26th president of the united states 1901 1909 25th vice president of the united states 1901 33rd governor of new york 1899 1900 assistant secretary of the navy 1897 1898 new york city police commissioner 1895 1897 new york state assemblyman 1882 1883 1884 presidency first inauguration historic site second inauguiration square deal booker t. washington dinner conservation newlands reclamation act transfer act of 1905 antiquities act pelican island devils tower national monument muir woods national monument other national monuments united states forest service united states reclamation service national wildlife refuge system roosevelt arch conference of governors northern securities company breakup court case coal strike of 1902 pure food and drug act food and drug administration