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32. Populated Places Colorado 1999

Datasets American Geographical Society Library - UWM Libraries Public content
1999. Colorado Geological Survey. This point data layer represents populated places for Colorado in 1999. The dataset was originally published by the Colorado Geological Survey in 1...

37. Purdue Campus: West Lafayette, Indiana, 1999

Maps Purdue University Public content
1999. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu... Purdue University Libraries.

38. Quaternary geology of Ohio

Maps The Ohio State University Public content
1999. Ohio. Division of Geological Survey. Scale 1:500,000 ; Lambert conformal conic projection, standard parallels 33⁰ and 45⁰ Includes text and 2 key maps showing compilation responsibilit... Ohio. Division of Geological Survey.