ARC/INFO to GRASS Conversion Manual Waltermire, R. G. 1993. ARC/INFO to GRASS Conversion Manual. Report by TGS Technology, Inc., Fort Collins, Colorado, for the U.S. Fish and Wildlife Service, Environmental Management Technical Center, Onalaska, Wisconsin, January 1993. EMTC 93-S001. 73 pp. (NTIS #PB94-112760) ABSTRACT This manual is based on the Geographic Resources Analysis and Statistical System (GRASS) version 4.0 running on a Sun SPARC workstation. All the commands described in this manual (GRASS or UNIX) can be used from within GRASS. There is no need to exit GRASS but use of other command tool windows may increase work speed. The user must be in GRASS to execute GRASS-oriented shellscripts. KEYWORDS GRASS, UNIX, ARC/INFO, Upper Mississippi River System, data conversion