Hypsometric Map of Portugal (1906)
Hypsometric Map of Portugal, on a scale of 1:500 000 (according to the chorographic map on a scale of 1:100 000).
Hypsometric Map of Portugal (1906)
Hypsometric Map of Portugal, on a scale of 1:500 000 (according to the chorographic map on a scale of 1:100 000).