This cache is located in Sylvan Prairie Park. As others have noted, this is a failed housing development / golf course that is being turned back into native prairie land. I find it very refreshing to see local municipalities putting nature ahead of development, especially now during the recent downfall of our honeybees and butterflies.
Stay on the paved trail until within about 300 feet of the cache, then a geotrail will take you to within about 30 feet.
Congratulations to SW00P for FTF.