Cimarron National Grasslands is well known to wildlife enthusiasts who travel to Morton County to explore the rolling sandsage prairie. The responsible entity for management of Cimarron National Grasslands is the US Department of Agriculture, Forest Service.  Their mailing address is:
242 Highway 56 East
PO Box 300
Elkhart KS 67950

Contact them at (620) 697-4621 if you have specific questions about use or management of the site.