Share This Event Nature Geo-caching 101 April 17, 2016 - April 18, 2016 12:00 am - 12:00 am River Trail Nature Center Location River Trail Nature Center3120 N. Milwaukee Ave. Northbrook, IL 60062 View map Description Learn about and participate in this technology-inspired scavenger hunt. Check out a GPS units or bring your own. Event Cost: Free Event times: Noon-2 p.m. MAP