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The Lost Surveyor History · Places · Better Maps

From the Index

Source institution: David Rumsey Map Collection

Reports, histories, and working notes filed under this subject.

Field Notes

Carte de la Vallée de Mexico et des Montagnes Voisines

The long title makes this map’s working methods unusually visible. Sketches made in 1804 were revised using triangulation, astronomical observations, and barometric measurements, with several contributors named. Cities,…

Field Notes

Geological map of the city of San Francisco

Published with the investigation of the 1906 California earthquake, this map places San Francisco’s streets over ten geological units and identifies the original shoreline. Contours and spot heights…