dnr.state.mn.us
dnr.state.mn.us
datapandas.org
sll.dot.state.mn.us
Minnesota Department of Transportation
https://sll.dot.state.mn.us › research › seasonal_load_limits › thawindex › frost_thaw_graphs.asp
dot.state.mn.us
Minnesota Department of Transportation
https://www.dot.state.mn.us › loadlimits › frost-thaw.html
curlie.org
swroc.cfans.umn.edu
Southwest Research & Outreach Center
https://swroc.cfans.umn.edu › weather › frost-depth
plantmaps.com
dnr.state.mn.us
momwithaprep.com
Mom with a PREP
https://momwithaprep.com › frost-line-depth-by-zip-code-usa
plantmaps.com
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