Geologic Unit: River Falls

Usage:

River Falls Formation (WI)

Subunits:

Prairie Farm Member (WI).

Geologic age:

Quaternary (Pleistocene)

Type section, locality, area and/or origin of name:

Type section: south side of abandoned gravel quarry, 300 m south of County Trunk Highway E., about 2.5 mi (4 km) northeast of Baldwin, in SE/4 NE/4 NE/4 sec. 18, T. 29 N., R. 16 W., [approx. Lat. 45 deg. 00 min. 12 sec. N., Long. 92 deg. 21 min. 40 sec. W.], southern edge Emerald 7.5-min quadrangle, St. Croix Co., western WI (Mickelson and others, 1984; Syverson and others, 2011).
Named from River Falls, River Falls West 7.5-min quadrangle, Pierce Co., western WI (Mickelson and others, 1984; Syverson and others, 2011).
Reference section: west side of abandoned gravel pit, about 50 m south of Pleasant Valley Road, about 5 mi (8 km) southeast of River Falls, in SW/4 SW/4 NE/4 sec. 28, T. 27 N., R. 18 W., [approx. Lat. 44 deg. 47 min. 52 sec. N., Long. 92 deg. 34 min. 05 sec. W.], River Falls East 7.5-min quadrangle, Pierce Co., western WI (Mickelson and others, 1984; Syverson and others, 2011).

AAPG geologic province:

Wisconsin arch