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Date: Fri, 29 Jan 1999 08:50:18 -0500
From: Rea Mueller <[log in to unmask]>
Subject: USGS I-maps
 
 
In August 1996, the USGS I-map series name was changed from Miscellaneous
Investigation Series Maps to Geologic Investigation Series .  All geologic maps
approved for publication after August 1996 will be published in the Geologic
Investigation Series; maps approved prior to August 1996 will be Miscellaneous
Investigation Series.  The series definition remains the same.
 
"Maps on planimetric or topographic bases; regular and irregular areas; various
scales; a wide variety of format and subject matter.  The series also includes
7.5-minute quadrangle photogeologic maps on planimetric bases which show geology
as interpreted from aerial photographs and maps of Mars and the Moon."
 
Rea Mueller
USGS
703-648-5954
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