Indian Lake County Park Professional Review and Guide
"Sign in as a visitor in a historic chapel on a bluff overlooking a small lake and then hike parts of the Ice Age Trail and local ski trails over rolling hills. In the winter of 1856, John Endres and his entire family became infected with diphtheria during an epidemic in southern Wisconsin.
The disease was especially dangerous for children, and Endres climbed to the top of the hill above their home and prayed, promising that if his family survived, he would construct a chapel there. Indeed, everyone survived, and Endres made good on his promise. In 1857, he constructed the tiny St. Mary of the Oaks, containing an altar with a praying Virgin Mary, a picture of Jesus, and various other religious objects."