Pg. 15, 26, 27. Fargo limestone member of Nemaha formation. Exposed between Weeping Water Valley and Walnut Creek; from 4 miles northwest of Fargo to near Rulo; and in spur south of Rulo. Makes prominent cliff in valley side near Fargo, the type locality. One-half mile north of Fargo it consists of: (1) bluish, massive, brittle limestone 1.5 to 2 feet thick, which makes a natural riprap along river bank; (2) dark blue, carbonaceous, clayey to sandy shale, 5 feet; and (3) limestone, 4 feet, in 3 beds. Separated from overlying Preston [Emporia] limestone by 14 to 34 feet of shale and from underlying Burlingame limestone by 11 to 29 [32?] feet of shale. Fossils (crinoids, brachiopods, bryozoans, fusulinids). Age is Pennsylvanian. Report includes measured sections, cross sections.
Type locality: forms prominent cliff in valley side near Fargo, Richardson Co., southeastern NE. Exposed between Weeping Water Valley and Walnut Creek, from 4 mi northwest of Fargo to near Rulo, and in spur south of Rulo, Richardson Co., southeastern NE.

Source: US geologic names lexicons (USGS Bull. 896, p. 721; USGS Bull. 1200, p. 1322); GNC KS-NE Pennsylvanian Corr. Chart, sheet 1, Oct. 1936; supplemental information from GNU records (USGS DDS-6; Denver GNULEX).

Pg. 63, 66, 67. "Fargo" limestone of Condra and Bengston [1915] is Wakarusa limestone, which has priority.

Source: US geologic names lexicon (USGS Bull. 896, p. 721).