
The Illinois River dominates this mid-1970s orthophotoquad, carving a wide path through the fertile lowlands of Mason County. This specialized aerial imagery reveals the intricate relationship between the river's shifting channels and the intensive agricultural systems that border its banks. The settlement of Bath is visible on the eastern bank, positioned where the grid of inland farm fields meets the complex wetlands and secondary waterways of the river valley. Unlike traditional topographic maps, this survey uses direct photography to show the exact state of the floodplain, including the circular patterns of center-pivot irrigation systems and the dense forest cover that remains along the islands and banks of the Illinois River.
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This is the sole edition of this map. No revisions or reprints were ever made.
20 maps found

1971 Biggs
Mason County, IL

1975 Chandlerville NW
Mason County, IL

1980 Natrona
Mason County, IL

1982 Duck Island
Mason County, IL

1996 Duck Island
Mason County, IL
2012 Biggs
Mason County, IL
2012 Duck Island
Mason County, IL
2012 Natrona
Mason County, IL
2015 Biggs
Mason County, IL
2015 Duck Island
Mason County, IL
2015 Natrona
Mason County, IL
2018 Biggs
Mason County, IL
2018 Duck Island
Mason County, IL
2018 Natrona
Mason County, IL
2021 Biggs
Mason County, IL
2021 Duck Island
Mason County, IL
2021 Natrona
Mason County, IL

2024 Biggs
Mason County, IL

2024 Duck Island
Mason County, IL

2024 Natrona
Mason County, IL