Açores, carta corografica da Ilha de S. Miguel /
Instituto Geográfico e Cadastral (Portugal)
[Lisbon] : Instituto Geográfico e Cadastral,
1941.
Relief shown by contours and spot heights.
This edition has woodland overprint.
Revised from an 1897 map published by the Direcção Geral dos Trabalhos Geodesicos.
Each sheet includes index to sheets.