This georeferenced image was downloaded from the USGS/AASG National Geologic Map Database, on Mon Mar 13 17:04:57 2023 (GMT).
Georeferencing and projection information are provided in the USGS_I-2496_1.tif.aux.xml file (see also the USGS_I-2496_1.tif.txt).

TITLE = Geologic map of Morrill County, Nebraska with a section on new 40Ar/39Ar laser fusion ash dates from Wildcat Ridge, Nebraska
AUTHOR(S) = Swinehart, J.B., Diffendal, R.F., and Swisher, C.C.
PUBLISHER = U.S. Geological Survey
SERIES NAME = Miscellaneous Investigations Series Map
SERIES NUMBER = I-2496
PUBLICATION DATE = 1995
SCALE = 1:62,500
URL = /Prodesc/proddesc_10299.htm