Iowa, 7.5 minute series (topographic) / mapped, edited, and published by the Geological Survey.

Bibliographic Details
Corporate Authors: Geological Survey (U.S.)
Iowa Geological Survey
Language:English
Published: Reston, Va. : U.S. Geological Survey, [1953?-]
Subjects:
Iowa > Maps.
Topographic maps.
Maps.
Genre:
Maps.
Topographic maps.
Physical Description:maps : color ; on sheets 69 x 56 cm
Cartographic Data:Scale 1:24,000 ;
Lambert conformal conic projection, or Polyconic projection, or Universal transverse Mercator projection
(W 97°00ʹ00ʺ--W 90°00ʹ00ʺ/N 44°00ʹ00ʺ--N 40°00ʹ00ʺ).
Format: Government Document Map
Description
Note:Relief shown by contours and spot heights.
"Topography by photogrammetric methods from aerial photographs."
Photorevised sheets show changes in purple.
Includes quadrangle location map.
Editions beginning in the 1990's include index to adjoining sheets.
Set includes various issues of some sheets.
On some sheets: "... in cooperation with the Iowa Geological Survey."
Standard map series designation: Series V876.
Cartographic material.
Call Number:Arranged by sheet name - refer to index in Maps