This application uses the Mn/DOT BaseMap which has a planning level set of data developed at a scale of 1:24000.
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Due to scheduled maintenance, this service will not be available on Sundays from 12am to 6am. We're sorry for any inconvenience.
About Geodetic Monuments
The Minnesota Department of Transportation (Mn/DOT) maintains a Geodetic Database containing information on permanent geodetic control marks and continuously operating reference stations located in Minnesota or just outside its boundaries. Permanent geodetic control marks are established for the purpose of providing precise horizontal and vertical control positions for the registration of surveying and mapping activities in the local area. Information about the location of an object based on its geodetic location locates that object in a worldwide geographic information system. The marks have unique identification and year established stamped on the monument disk, usually a 89mm (3 ½ inch) diameter brass or aluminum disk. Monuments consist of material (concrete or metal) that is meant to stay in place for 50 to 100 years or more and have little or no movement due to frost action or activity near the monument. For additional information about Geodesy and related terms and FAQ's, please see the NGS and Mn/DOT Geodetic Unit websites below:
ATTENTION: A new geodetic monument viewer will be available July 8, 2015. As a result, the viewer will be shut down on this site between 11 a.m. and 1 p.m. that day. Please plan ahead.
The map allows you to do a spatial search of the statewide map to graphically select and view geodetic monuments and their associated map sheets and reference pictures.
Printing and Pop-up blocking:
Pop-up blocking will need to be disabled in order for you to print any maps and use other features available on this Web site.
You can also add this site to your list of sites where pop ups are allowed.
- In Internet Explorer, go to tools, Pop-up Blocker Settings and add gismaps.dot.state.mn.us. Click add and close.
- In Firefox go under tools, options Web Features and add gismaps.dot.state.mn.us as an allowed site.
Viewing the Interactive GIS Map:
This map is best viewed at a screen resolution of 1024 * 768 or higher with colors set to thousands or higher.
You may encounter problems if you try to stretch the image onto two or more computer screens.
Common GIS layers may include:
Roads, railroads, airport runways, navigable waters, state boundary, county boundaries, municipal boundaries, Mn/DOT Districts, civil boundaries, township boundaries, state parks, military reservations, indian reservation land, national forests, national parks, streams, lakes
Geodetic specific layers may include:
- Geodetic Monuments
- CORS Stations