(Map of Alpena County, Michigan)

1873

Walling, H. F.

1:190k

Alpena

1984

1:100k

North Point

1971

1:24k

North Point

1971

1:24k

Lake Huron Coast Six Miles North of Oscoda to Forty Mile Point Light Including Great Duck Island

1973

NOS Lake Survey Center

1:120k

Alpena

1954

1:250k

Alpena

1958

1:250k

Alpena

1954

1:250k

Alpena

1969

1:250k

Wurtsmith Air Force Base : Oscoda Michigan : Vicinity map

1952

United States. Air Force

1:500k