Alamo Hueco Mountains

1983

1:100k

Douglas

1964

1:250k

Douglas

1961

1:250k

Douglas

1959

1:250k

Douglas

1959

1:250k

Douglas

1959

1:250k

Douglas

1959

1:250k

Douglas

1955

1:250k

Douglas

1955

1:250k

Linea Divisoria Entre Mexico Y Los Estados Unidos. No. 5.

1901

International Boundary Commission

1:60k