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1971
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1971
1974
1978
1979
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1984
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1989
1990
1991
1992
1993
1994
1995
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1999
2000
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2020
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1971
1974
1978
1979
1980
1981
1984
1985
1986
1987
1989
1990
1991
1992
1993
1994
1995
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1997
1998
1999
2000
2001
2002
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2005
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2007
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2009
2010
2011
2012
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2015
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2019
2020
2021
2022
2023
Quadrangle
2016
2017
2018
(001) Conowingo Dam, Md.-Pa.
0.00
0.00
0.00
(002) Aberdeen, Md.
38.45
27.65
25.00
(003) Havre de Grace, Md.
2,906.76
3,010.89
2,875.16
(004) North East, Md.
470.42
460.01
421.99
(005) Elkton, Md.-Del.
192.07
174.01
164.16
(006) White Marsh, Md.
56.63
45.45
60.29
(007) Edgewood, Md.
228.39
249.61
347.87
(008) Perryman, Md.
84.07
89.31
149.68
(009) Spesutie, Md.
746.23
778.49
750.47
(010) Earleville, Md.
543.84
427.07
348.14
(011) Cecilton, Md.
5.35
0.98
0.00(nd)
(012) Baltimore East, Md.
0.00
0.00
0.00
(013) Middle River, Md.
360.03
349.16
340.63
(014) Gunpowder Neck, Md.
175.98
331.20
466.28
(015) Hanesville, Md.
10.56
16.33
30.67
(016) Betterton, Md.
34.34
16.74
26.55
(017) Galena, Md.
13.81
4.16
5.76
(018) Curtis Bay, Md.
0.00
1.24
3.43
(019) Sparrows Point, Md.
44.65
57.78
68.98
(020) Swan Point, Md.
21.14
17.48
21.13
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Areas in Hectares. "nd" indicates that the area was not mapped. "pd" indicates that the area was not fully mapped.
2023 SAV Totals are Preliminary.