Surveyor's made short but precise notes as they measured the land of Illinois. Their measurements were very important, as they were the basis for public land sales by regional land offices to settlers. The surveyors noted the distances between landmarks such as large trees, creeks, and groves.
Read more about the surveying of Illinois in our Web exhibit, [i]Prairies in the Prairie State[/i] and [i]MuseumLink Forest[/i] Web exhibit.
Scientists use land survey journal entries to find out what plants, animals, and geologic features were in parts of Illinois 200 years ago.