Western Masbate Island

1951

Philippine Coast and Geodetic Survey

1:100k

Western Mindanao

1912

1:411k

Western Mindanao

1908

1:411k

Western Mindanao

1905

1:411k

No. 28. Mindanao Occidental, Jolo.

1899

U.S. Coast and Geodetic Survey

1:1m

Carta General Del Archipielago Filipino

1897

1:734k

[Islas filipinas - Mindalao occidential, Joló]

1900

Algué, P. José

No. 27. Mindanao Oriental.

1899

U.S. Coast and Geodetic Survey

1:2m

Geologic reconnaissance map of Mindanoa / Bureau of Science, Division of Mines ; P. Moskaira, engraved ; geology by Warren D. Smith

1915

Bureau of Science . Division of Mines

[Islas filipinas - Mindanao oriental]

1900

Algué, P. José