
The Illinois River corridor dominates this Marshall County landscape, where the community of Lacon serves as a prominent riverfront hub. On the eastern bank, the town's grid is anchored by the Marshall County Courthouse, while the village of Sparland sits directly across the water to the west. The river environment is defined by a complex network of backwater features, including Goose Lake, Babb Slough, and Wightman Lake, much of which is protected within the Chautauqua National Wildlife Refuge. Away from the valley floor, the terrain rises into dissected bluffs cut by drainages like Crow Creek and Gimlet Creek. This modern survey also preserves the locations of several local burial grounds, such as Nighswonger Cem and Bonham Cem, providing clear spatial context for genealogical research in this river-valley setting.
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This is the sole edition of this map. No revisions or reprints were ever made.
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