Mallows Bay-Potomac River National Marine Sanctuary Boundary Coordinates

Coordinates listed in this appendix are unprojected (Geographic) and based on the North American Datum of 1983.

Point ID	Latitude	Longitude
1	38.39731	−77.31008
2	38.39823	−77.31030
3	38.39856	−77.31059
4	38.39886	−77.31074
5	38.39917	−77.31067
6	38.40014	−77.31074
7	38.4009	−77.31145
8	38.40138	−77.31215
9	38.40197	−77.31236
10	38.40314	−77.31278
11	38.40658	−77.31377
12	38.40984	−77.31465
13	38.41388	−77.31692
14	38.41831	−77.31913
15	38.41974	−77.31930
16	38.42352	−77.31971
17	38.42548	−77.32030
18	38.42737	−77.32081
19	38.43091	−77.32240
20	38.43163	−77.32242
21	38.4335	−77.32263
22	38.43384	−77.32269
23	38.4343	−77.32265
24	38.43461	−77.32229
25	38.43498	−77.32146
26	38.43526	−77.32057
27	38.43522	−77.32040
28	38.47321	−77.31845
29	38.47434	−77.31874
30	38.4756	−77.31752
31	38.47655	−77.31686
32	38.47748	−77.31666
33	38.47821	−77.31604
34	38.47871	−77.31554
35	38.47885	−77.31563
36	38.47905	−77.31559
37	38.47921	−77.31578
38	38.47943	−77.31592
39	38.47985	−77.31592
40	38.48493	−77.31335
41 *	38.48554	−77.27298
42 *	38.39793	−77.25704
43	38.39731	−77.31008

Note: The coordinates in the table above marked with an asterisk (*) are not a part of the sanctuary boundary. These coordinates are landward reference points used to draw a line segment that intersects with the shoreline.