The summit of this rock is the highest known point in the state, 1940 feet above sea level. This land, forty acres in area, was presented to the commonwealth on January 26, 1923, by the estate of Jacob Gensman. The park was enlarged to 160 acres by the Kiwanis Club of Wausau. This area was originally a sandy beach swept by the ocean. The sand was finally hardened to quartzite rock and by slow upheaval tilted on edge and raised to its present height.