You searched for: Place At Allen Knob; Shallenberger SNP, 0.37 mi. S. of Grumley Rd., NW 1/4 sect. 15; Hocking Township. Remove constraint Place: At Allen Knob; Shallenberger SNP, 0.37 mi. S. of Grumley Rd., NW 1/4 sect. 15; Hocking Township.