Grindstone

1903

1:63k

Grindstone

1903

1:63k

Grindstone

1903

1:63k

Grindstone

1903

1:63k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1971

NOS Lake Survey Center

1:30k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1959

NOS Lake Survey Center

1:30k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1973

NOS Lake Survey Center

1:30k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1968

NOS Lake Survey Center

1:30k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1966

NOS Lake Survey Center

1:30k

St Lawrence River Whiskey Island Shoal to Bartlett Point Grenadier Island to Jackstraw Shoal

1959

NOS Lake Survey Center

1:30k