Knob Lick Mountain section: Intrusive contact of Precambrian granite with rhyolite in the St. Francois Mountains, Missouri
Eva B. Kisvarsanyi, Arthur W. Hebrank, 1987. "Knob Lick Mountain section: Intrusive contact of Precambrian granite with rhyolite in the St. Francois Mountains, Missouri", North-Central Section of the Geological Society of America, Donald L. Biggs
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Knob Lick Mountain, in the eastern part of the St.Francois Mountains, is about 9.5 mi ( 15.2 km) south of Farmington, in St.Francois County, Missouri (Wachita Mountain 7½-minute Quadrangle). Rising to agentle elevation of 1,333 ft (400 m) above sea level, Knob Lick Mountain may be reached by following Knob Lick Tower Road for 1.1 mi (1.75 km) west of its junction with U.S. 67, just south of the village of Knob Lick (Fig. la), to the parking lot by the lookout tower a top Knob Lick Mountain (NE¼NE¼SE¼, Sec.8, T.34N., R.6E.). A panoramic view of the St. Francois Mountains is afforded from the bald, 100ft (30 m) south of the lookout tower. The intrusive contact of granite with rhyolite is exposed in an abandoned granite quarry, marked on Figure la (SW¼NE¼NE¼, Sec.8, T.34N., R.6E.), about 2,000 ft (600m) northwest from the lookout tower. Access to the quarry is provided by the old ridge road; walk 2,000 ft (600 m) due northwest from the lookout tower on old ridge road, then 200 ft (60 m) due east through the woods to the quarry. Visit of this site involves about a 1.5-hour hike. The site is on public land.