Birch Island, northwest of Strømforhold

Strømforhold 1.1 mi Pumpkin Island, north of 1.7 mi Swains Ledge, 0.3 nautical mile SW of 2.3 mi Little Deer I.-Sheep I., between 2.3 mi Hog Island, ESE of 2.3 mi Little Eaton Island, NNE of 2.9 mi Pickering Island, south of 3.1 mi Pond Island-Western Island, between 4.1 mi Head of the Cape, NNW of, Penobscot Bay 4.7 mi Head of the Cape, 0.8 nmi. W, of Penobscot Bay 4.9 mi Bradbury Island, ESE of 5.7 mi Butter I., 0.3 nautical mile SE of 5.8 mi Hosmer Ledge, Castine Harbor 6.0 mi Great Spruce Head Island, west of 6.1 mi Islesboro Harbor, NE of, Penobscot Bay 6.2 mi Islesboro Harbor, NE of, Penobscot Bay 6.9 mi Dice Head, west of, Penobscot Bay 7.0 mi Turtle Head Pt., ESE of, Penobscot Bay 7.1 mi Scrag Island, 0.3 nautical mile SW of 7.6 mi Eagle Island, 0.4 nautical mile S of 7.7 mi Compass Island, 0.4 nmi. ENE of 8.3 mi Burnt Island-Oak Island, between 8.4 mi Flat Island, SSW of 8.5 mi Jones Point, Bagaduce River 8.7 mi Ram Island, west of, West Penobscot Bay 9.0 mi Temple Heights, NE of, W Penobscot Bay 9.1 mi Ducktrap Harbor, northeast of 9.9 mi Ducktrap Harbor, NNE of 10.0 mi Warren Island, northwest of 10.0 mi Temple Heights, NNE of, W Penobscot Bay 10.1 mi Ducktrap Harbor, NNE of 11.5 mi Ensign Island, SSE of 11.5 mi Fort Point Ledge, Penobscot Bay 11.7 mi Russ Island, N of, Deer Island Thorofare 11.8 mi Mark Island, north of 11.8 mi Grog Island, E of, Deer Island Thorofare 12.2 mi Clam I., NW of, Deer I. Thorofare 12.3 mi Widow Island-Stimpson Island, between 12.4 mi Lasell Island, SSW of Tidevand 3.2 mi Little Deer Isle, Eggemoggin Reach 6.1 mi Castine, Penobscot Bay 8.8 mi Center Harbor, Eggemoggin Reach 10.2 mi Oceanville, Deer Isle, Penobscot Bay 11.3 mi Stonington, Deer Isle, Penobscot Bay 12.0 mi Blue Hill Harbor, Blue Hill Bay 12.0 mi Pulpit Harbor, North Haven Island, Penobscot Bay 12.0 mi Fort Point, Penobscot River