
The Savanna Ordnance Depot dominates the riverfront landscape in this 1930s survey, marking a significant military footprint along the Mississippi River corridor. The map captures a moment of transition where industrial and military utility meets the complex riparian environment of the driftless region. Along the Chicago Burlington and Quincy railroad, the small settlement of Whitton serves as a local waypoint, while the rural education system is evidenced by the Nobis Sch and Lost Mound Sch. The intricate hydrology of the area is well-documented through the winding path of the Apple River and a series of numbered islands, including Island No 254 and Island No 257, which flank the Crooked Slough. Large portions of the map remain an Unsurveyed Area, contrasting the detailed river topography with the unknown interiors of the mid-1930s.
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This is the sole edition of this map. No revisions or reprints were ever made.
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