Rio Grande

1963

1:20k

Rio Grande

1963

1:20k

Rio Grande

1947

1:30k

Rio Grande

1963

1:20k

Rio Grande

1947

1:30k

Rio Grande

1947

1:30k

Rio Grande

1956

1:20k

Rio Grande

1941

1:30k

Rio Grande

1963

1:20k

Soil map : Poerto Rico : Eastern sheet

1942

Roberts, R. C.

1:50k