Aggregate mapping for Chisago County was completed in 2001 by the Minnesota Geological Survey (MGS) under contract with the DNR's Aggregate Mapping Program.
Plates in digital and hardcopy format, and GIS data, are available from the MGS as project M-116 "Aggregate Resources of Chisago County."
Download digital plates and data for project M-116 (link to MGS ftp site).
Request hardcopy plate:
To order plates in printed format, call the MGS at 612-627-4780.