![View and interact with Aggregate Resource Mapping Program GIS Data](https://images.dnr.state.mn.us/lands_minerals/webmaps/amp_feature.jpg)
Aggregate Mapping Program
View and interact with the compiled GIS Data from 28 completed aggregate resource mapping project areas.
Web Map »
Reference Site
About Aggregate Mapping Program Online Map »
![Box of drill core samples](https://images.dnr.state.mn.us/lands_minerals/webmaps/dcl_feature.jpg)
Drill Core Library and
Mineral Exploration Document Collections
View an interactive map displaying the geographic distribution of core and other samples stored at the drill core library. Additionally search and view DNR's mineral exploration collections for both the Minarchive Collection and Lehmann Family Fund Collection.
Web Map »
Reference Sites
Drill Core Library »
Minarchive Collection »
Lehmann Collection »
![Image of different aggregate sizes](https://images.dnr.state.mn.us/lands_minerals/aggregate_leasing/aggregate_finder.png)
School Trust Aggregate Finder
Launch the web map to view high aggregate resource potential on School Trust Lands
Aggregate Finder Web Map »
![snapshot of school trust lands web map](https://images.dnr.state.mn.us/lands_minerals/stl/stl_feature_map_web.jpg)
School Trust Lands
Launch the web map to locate 2.5 million surface acres and 1 million additional acres of mineral rights included in the School Trust Land portfolio.
Launch Web Map »
![Snippet image of underground mine mapping web map](https://images.dnr.state.mn.us/lands_minerals/webmaps/umm_feature.jpg)
Underground Mine Mapping
The web map allows the user to overlay underground features and ownership information from the Underground Mine Mapping Project.
Underground mine mapping web map »
Reference Site
Mine mapping project site »
![Snippet image of trout stream setback web map](https://images.dnr.state.mn.us/lands_minerals/webmaps/troutstream_feature.jpg)
Trout Stream Setback
The DNR is directed to develop and administer a setback permit for silica sand mining within one mile of a designated trout stream.
Trout Stream Setback »