From the Roanoke County website:
Join us for the fourth-annual Amazing County Treasure Hunt, starting at 11 a.m. this Saturday at Green Ridge Recreation Center. It’s a free treasure hunting game which challenges your individual or family team to search for hidden caches and rack up points. Use the provided clues and coordinates and hunt with your own GPS device. A limited number will be available at the event with deposit. There will be prizes. Call 387-6078 ext 251 for details.