(Κνῶπος; Knôpos). River in Boeotia; according to Nic. Ther. 889 it flowed into Lake Copais; schol. Nic. Ther. 889 also mentions an otherwise unknown polis C. that lay on the river Ismenus (=C.?); it is from an area named Cnopia near Thebes (Str. 9,2,10: ἐκ τῆς Κνωπίας Θηβαϊκῆς) that the sanctuary of Amphiaraus is said to have been transplanted to Oropus.
C. Bursian, Geogr. von Griechenland 1, 1862, 200
T. K. Hubbard, Remaking Myth and Rewriting History: Cult Tradition in Pindar's Ninth Nemean, in: HSPh 94, 1992, 102-107