Government Land Office Survey Maps

Government Land Office Land Cover of Iowa 1832-1859

The Government Land Office Survey map of mid-nineteenth century Iowa offers a reasonable view of the upland vegetation at the time of Euroamerican settlers arrived.

2002 Satellite Data of Iowa Land Cover

In contrast see a modern satellite map showing Iowa’s land cover today. Prairie is almost gone, and wetlands considerably diminished, due to the successful efforts of nineteenth century pioneer farmers who tiled and drained thousands of acres.