Dufour card 1833 - 1863, 1:100'000

Dufour card: This dataset contains the two sheets (III, VIII) of the Dufour map 1:100'000, which cover the canton of Aargau. Dufourkarte and Siegfriedatlas are largely based on the same recordings from the years: 1818 / 1836 to 1862. The Dufour map served for a long time as a field map of the Swiss army. Sheet cut and map format are identical to the current country map. It was produced with a true-to-area spurious cone projection, the ellipsoid Schmidt 1828 and an initial height of 376.2 m above sea level.