- 1990 census transportation planning package. MI, OH
- Digital bedrock geologic map of the Ashland and the northern part of the Ironwood 30# x 60# quadrangles, Wisconsin and Michigan
- General Land Office automated records project. Michigan pre-1908 homestead & cash entry patents and cadastral survey plat index.
- Geologic map of the Ontonagon and part of the Wakefield 30# x 60# quadrangles, Michigan, a digital representation of Map I-2499 (1995)
- Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin