Added aerial photo coverage for all of Greene County Illinois a total area of 546 square miles in the year 1956. View of Koster Site a prehistoric archaeological site in 1956. It is one of the oldest known cemetery sites in eastern North America.
Added aerial photo coverage for all of Greene County Illinois a total area of 546 square miles in the year 1956. View of Koster Site a prehistoric archaeological site in 1956. It is one of the oldest known cemetery sites in eastern North America.