You searched for: Place North America Remove constraint Place: North America Place South of Effingham, 0.6 mile north of 1000N along west side of railroad 5 acre prairie. Effingham South 7.5 minute quadrangle. Remove constraint Place: South of Effingham, 0.6 mile north of 1000N along west side of railroad 5 acre prairie. Effingham South 7.5 minute quadrangle. Topic Dichanthelium Remove constraint Topic: Dichanthelium