MIRIS Base Maps



Michigan Resource Information System (MIRIS) Base Maps are a set of maps digitized from United Stated Geological Survey (USGS) quadrangles and maintained by the Michigan Department of Natural Resources' (DNR) Michigan Resource Inventory Program (MRIP). The digitized features include transportation corridors, political boundaries, land survey section descriptions, and lands and waterways. A total of 40 features, described below, are provided where applicable in each base map. All 83 Michigan counties have maps available.

The Michigan State Plane Coordinate System is used to internally store the x,y position of all lines, points, and areas. This system separates the state into three zones: The north zone contains the entire Upper Peninsula; the central zone contains the ? counties including the north of Mason, Lake, Osceola, Clare, Gladwin, and Arenac counties; the south zone contains the remainder of the Lower Peninsula. Coordinate positions are based on the North American Datum of 1927.

Map features are separated into different levels. Files do not contain topological relationships of map features but can be used to create a topologically structured data base.

MIRIS Base Map files are created in an Intergraph IGDS vector format and can be translated to Data Exchange Format (DXF).

Archival/Access Information

The MIRIS County Base Maps are archived by the Michigan DNR Michigan Resource Inventory Program (MRIP).

Maps are available for purchase from the DNR in both digital and hardcopy formats. They can be ordered by county, township, quadrangle, or 36 square mile area. Check the price list for further information.

Digital MIRIS Base Maps at the county level are available for purchase through the Consortium for International Earth Science Information Network (CIESIN).

Data Acquisition/Collection Summary

Data on the MIRIS system were digitized from United States Geological Survey (USGS) 7.5' quadrangles.

Related Datasets

Other datasets maintained by the Michigan DNR include Land Cover (Product Number 200), Soil Types (Product Number 300), and Water Wells (Product Number 400).

Datasets from other organizations containing environmental, earth science, and global change information can be located through the Consortium for International Earth Science Information Network's (CIESIN) Gateway.

Contacts and References


Airports, Base, Base Map, Boundaries, County Lines, Drains, Lakes, Map, MDNR, MIRIS, MRIP, Pipeline, Railroads, Rivers, Roads, Section, Shorelines, Town Lines