Pg. 89, 107, 122. Garrett Mill sandstone member of Warsaw formation. Generally flaggy sandstone, 5 to 10 feet thick. Is persistent throughout northern Overton County, northern central Tennessee, and thence as far north as Pulaski County, southeastern Kentucky, where it is represented by a few inches of sandy limestone at top of the Warsaw in bluff of Cumberland River just north of Burnside. It is the only sandstone in a considerable thickness of limestone, and extends over several counties (Overton County, Tennessee, to Pulaski County, Kentucky). Is top member of Warsaw formation. Lies stratigraphically higher than Somerset shale member of Warsaw. [Page 122 shows a few feet of shale between St. Louis limestone and Garrett Mill sandstone.] Age is Mississippian.
Named from exposures at Garrett Mill, on Eagle Creek [now Big Eagle Creek], 3 mi north-northeast of Livingston, [approx. Lat. 36 deg. 25 min. 33 sec. N., Long. 85 deg. 17 min. 50 sec. Livingston 7.5-min quadrangle], Overton Co., northern central TN. The mill stands on the sandstone.

Source: US geologic names lexicon (USGS Bull. 896, p. 803).

Garrett Mill sandstone member of Warsaw formation discussed briefly and located on 2 measured sections in Kentucky.

Source: GNU records (USGS DDS-6; Reston GNULEX).

Possible relationship of Garrett Mill Sandstone Member to Science Hill Sandstone Member, both of Warsaw Formation, is discussed briefly. Garret Mill may be a later, stratigraphically higher, lobe of the same stream system that deposited the Science Hill.

Source: GNU records (USGS DDS-6; Reston GNULEX).