Block Island

1957

1:24k

Block Island

1957

1:24k

Block Island

1998

1:24k

Block Island

1957

1:24k

Block Island

1957

1:24k

R.I. sheet 10.

1891

Geological Survey (U.S.)

1:63k

Harbors of Refuge

1925

C&GS

1:10k

Block Island

1899

1:63k

Block Island

1889

1:63k

Block Island

1899

1:63k