Quaking Bog The Quaking Bog is a unique habitat in Theodore Wirth Park with a floating dock. It has nearly 200 mature tamaracks, which shade the understory sphagnum moss of the hidden five-acre acid bog. It is a great place to look for dragonflys and damselflys. Address: 1339 Theodore Wirth Parkway Minneapolis MN USA 55411 1 612 370-4903