"1996 Peoria Lake Bathymetry - The bathymetric contours in this map were derived from a triangulated irregular network (TIN) built using the Z values from the surveyed cross-section points. LaMBert Conformal Conic projection based on standard parallels 30° and 45°.
This map is available online as a 35"" x 46"" PDF file (3.1MB)."
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