Regulations last checked for updates: May 19, 2024

Title 15 - Commerce and Foreign Trade last revised: May 14, 2024
Appendix Appendix B - Appendix B to Subpart H of Part 922—No-Anchoring Seagrass Protection Zones in Tomales Bay

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

(1) No-Anchoring Seagrass Protection Zone 1 encompasses an area of approximately .11 square nautical miles (.15 square miles) offshore south of Millerton Point. The precise boundary coordinates are listed in the table following this description. The eastern boundary is a straight line arc that connects points 1 and 2 listed in the coordinate table below. The southern boundary is a straight line arc that connects points 2 and 3, the western boundary is a straight line arc that connects points 3 and 4 and the northern boundary is a straight line arc that connects point 4 to point 5.

Zone 1 Point
ID No.
Latitude Longitude
138.10571−122.84565
238.09888−122.83603
338.09878−122.84431
438.10514−122.84904
538.10571−122.84565

(2) No-Anchoring Seagrass Protection Zone 2 encompasses an area of approximately .15 square nautical miles (.19 square miles) that begins just south of Marconi and extends approximately 1.6 nautical miles (1.9 miles) south along the eastern shore of Tomales Bay. The precise boundary coordinates are listed in the table following this description. The western boundary is a series of straight line arcs that sequentially connect point 1 to point 5 listed in the coordinate table below. The southern boundary is a straight line arc that extends from point 5 towards point 6 until it intersects the Mean High Water Line. From this intersection the eastern boundary follows the Mean High Water Line north until it intersects the straight line arc that connects point 7 to point 8. From this intersection the northern boundary extends to point 8.

Zone 2 Point
ID No.
Latitude Longitude
138.13326−122.87178
238.12724−122.86488
338.12563−122.86480
438.11899−122.86731
538.11386−122.85851
6 *38.11608−122.85813
7 *38.14078−122.87433
838.13326−122.87178

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

(3) No-Anchoring Seagrass Protection Zone 3 encompasses an area of approximately .01 square nautical miles (.02 square miles) that begins just south of Marshall and extends approximately .5 nautical miles (.6 miles) south along the eastern shore of Tomales Bay. The precise boundary coordinates are listed in the table following this description. The western boundary is a straight line arc that connects point 1 to point 2 listed in the coordinate table below. The southern boundary is a straight line arc that extends from point 2 towards point 3 until it intersects the Mean High Water Line. From this intersection the eastern boundary follows the Mean High Water Line northward until it intersects the straight line arc that connects point 4 to point 5. From this intersection the northern boundary extends westward along the straight line arc that connects point 4 to point 5.

Zone 3 Point
ID No.
Latitude Longitude
138.15956−122.89573
238.15250−122.89042
3 *38.15292−122.88984
4 *38.16031−122.89442
538.15956−122.89573

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

(4) No-Anchoring Seagrass Protection Zone 4 is an area of approximately .18 square nautical miles (.21 square miles) that begins just north of Nicks Cove and extends approximately 2.7 nautical miles (3.1 miles) south along the eastern shore of Tomales Bay to just south of Cypress Grove. The precise boundary coordinates are listed in the table following this description. The western boundary is a series of straight line arcs that sequentially connect point 1 to point 8 listed in the coordinate table below. The southern boundary is a straight line arc that extends from point 8 towards point 9 until it intersects the Mean High Water Line. From this intersection the eastern boundary follows the Mean High Water Line north until it intersects the straight line arc that connects point 10 to point 11. From this intersection the northern boundary extends westward along the straight line arc that connects point 10 to point 11.

Zone 4 Point
ID No.
Latitude Longitude
138.20004−122.92315
238.18881−122.91740
338.18651−122.91404
438.17919−122.91021
538.17450−122.90545
638.16869−122.90475
738.16535−122.90308
838.16227−122.89650
9 *38.16266−122.89620
10 *38.20080−122.92174
1138.20004−122.92315

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

(5) No-Anchoring Seagrass Protection Zone 5 encompasses an area of approximately 1.3 square nautical miles (1.6 square miles) that begins east of Lawson's Landing and extends approximately 2.7 nautical miles (3.1 miles) east and south along the eastern shore of Tomales Bay but excludes areas adjacent (approximately .32 nautical miles or .37 miles) to the mouth of Walker Creek. The precise boundary coordinates are listed in the table following this description. The western boundary is a series of straight line arcs that sequentially connect point 1 to point 3 listed in the coordinate table below. From point 3 the southern boundary trends eastward along the straight line arc that connects point 3 to point 4 until it intersects the Mean High Water Line. From this intersection the boundary follows the Mean High Water Line northward until it intersects the straight line arc that connects point 5 to point 6. From this intersection the boundary extends westward along the straight line arc that connects point 5 to point 6. From point 6 the boundary follows the straight line arc that connects point 6 to point 7, and then extends along the straight line arc that connects point 7 to point 8 until it again intersects the Mean High Water Line. From this intersection the boundary follows the Mean High Water Line until it intersects the straight line arc that connects point 9 to point 10. From this intersection the boundary extends to point 10 along the straight line arc that connects point 9 to point 10.

Zone 5 Point
ID No.
Latitude Longitude
138.21825−122.96041
238.20666−122.94397
338.19431−122.93431
4 *38.20080−122.92174
5 *38.20522−122.92446
638.20366−122.93246
738.20938−122.94153
8 *38.21599−122.93742
9 *38.23129−122.96293
1038.21825−122.96041

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

(6) No-Anchoring Seagrass Protection Zone 6 encompasses an area of approximately .01 square nautical miles (.02 square miles) in the vicinity of Indian Beach along the western shore of Tomales Bay. The precise boundary coordinates are listed in the table following this description. The eastern boundary is a straight line arc that connects point 1 to point 2 listed in the coordinate table below. The southern boundary extends westward along the straight line arc that connects point 2 to point 3 until it intersects the Mean High Water Line. From this intersection the eastern boundary follows the Mean High Water Line northward until it intersects the straight line arc that connects point 3 to point 4. From this intersection the northern boundary extends eastward along the straight line arc that connects point 4 to point 5.

Zone 6 Point
ID No.
Latitude Longitude
138.14103−122.89537
238.13919−122.89391
3 *38.13804−122.89610
4 *38.14033−122.89683
538.14103−122.89537

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

(7) No-Anchoring Seagrass Protection Zone 7 encompasses an area of approximately .09 square nautical miles (.12 square miles) that begins just south of Pebble Beach and extends approximately 1.6 nautical miles (1.9 miles) south along the western shore of Tomales Bay. The precise boundary coordinates are listed in the table following this description. The eastern boundary is a series of straight line arcs that sequentially connect point 1 to point 5 listed in the coordinate table below. The southern boundary extends along the straight line arc that connects point 5 to point 6 until it intersects the Mean High Water Line. From this intersection the western boundary extends north along the Mean High Water Line until it intersects the straight line arc that connects point 7 to point 8. From this intersection the northern boundary extends eastward along the straight line arc that connects point 7 to point 8.

Zone 7 Point
ID No.
Latitude Longitude
138.13067−122.88620
238.12362−122.87984
338.11916−122.87491
438.11486−122.86896
538.11096−122.86468
6 *38.11027−122.86551
7 *38.13001−122.88749
838.13067−122.88620

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

authority: 16 U.S.C. 1431
source: 60 FR 66877, Dec. 27, 1995, unless otherwise noted.