We've updated our Privacy Policy. Questions? Email us any time at privacy@ground.newsWe've updated our Privacy Policy with additional info on research surveys, our browser extension, cookie management, and ad performance measurement. Questions? Email us any time at privacy@ground.news
Armed with a map, visitors can hunt for the 17 hidden squirrel doors that are spread out amongst the 25-acre arboretum at Spiegel Grove in Fremont. Inspired by the fairy doors in Ann Arbor and by the fact that squirrels are the best-known wildlife on the property, John Havens, building and grounds superintendent, came up with the idea of squirrel doors.