Code of Federal Regulations > Title 15 > Chapter IX > Part 922 > Subpart R > Appendix Appendix A - Appendix A to Subpart R of Part 922—Thunder Bay National Marine Sanctuary and Underwater Preserve Boundary Coordinates

Regulations last checked for updates: Nov 05, 2025

Title 15 - Commerce and Foreign Trade last revised: Sep 26, 2025

Appendix Appendix A - Appendix A to Subpart R of Part 922—Thunder Bay National Marine Sanctuary and Underwater Preserve Boundary Coordinates

[Based on North American Datum of 1983]

Point ID	Latitude (north)	Longitude (west)
1	44.512834	−82.329519
2	44.858147	−82.408717
3	45.208484	−82.490596
4	45.335902	−82.52064
5	45.771937	−83.483974
6	45.773944	−83.636867
7	45.833333	−83.586892
8	45.833333	−84.333333
9 *	45.662858	−84.333333
10*	45.41733	−83.77327
11	45.42103	−83.79487
12	45.42708	−83.79371
13	45.42343	−83.75318
14	45.41748	−83.75333
15	45.41210	−83.76805
16 *	45.40738	−83.76785
17 *	45.29672	−83.41908
18	45.29682	−83.40965
19	45.29010	−83.40965
20	45.29464	−83.41914
21 *	45.29681	−83.42277
22 *	45.06632	−83.40715
23 *	45.06560	−83.40810
24 *	44.511734	−83.320169
25	44.512834	−82.329519

Note:

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

[79 FR 52972, Sept. 5, 2014; 80 FR 12080, Mar. 6, 2015, as amended at 80 FR 79684, Dec. 23, 2015]

authority: 16 U.S.C. 1431

source: 60 FR 66877, Dec. 27, 1995, unless otherwise noted.