[On p. 23 the name King's Mountain series is used for the rocks mapped and described as talcose slate, and on p. 30 the same rocks are called King's Mountain group.]

Source: US geologic names lexicon (USGS Bull. 896, p. 1100).

Pg. 414-417; Rpts. and resolutions of Gen. Assembly of South Carolina, reg. sess. commencing Jan. 14, 1908, v. 1, p. 648-651. King's Mountain slates (Archean). Comprise large bodies of quartz schist, quartz-mica schist, quartzite, mica schist, sericites, monzonite schists, gneissoids, and some argillites with highly developed slaty cleavage, and intermediate forms of rocks of sedimentary origin, all of which have been more or less foliated, greatly folded and otherwise disturbed by a vast series of igneous intrusions of enormous volumes. Largely confined to Abbeville-York zone, but outlying patches extend to Anderson-Spartanburg zone. Some igneous phases of this formation find their apparent equivalence in some rocks of Edgefied-Chesterfield zone. The Vaucluse zone also comprises certain highly altered sedimentary rocks of probable equivalence of King's Mountain slates. [Age is pre-Cambrian and Cambrian.]

Source: US geologic names lexicon (USGS Bull. 896, p. 1100).

Precambrian and Cambrian age †Kings Mountain series, †Kings Mountain group, or †Kings Mountain slates, of northwestern South Carolina and western North Carolina abandoned. Divisible into several formations, of which Kings Mountain Quartzite is one.
Named from development on Kings Mountain, in Cleveland and Gaston Cos., western NC.

Source: US geologic names lexicon (USGS Bull. 896, p. 1100).