pS. ?fo^' 2^2T CORALVILLE RESERVOIR — CALDWELL 111 



tions are not patent in the literature, but a Middle Woodland range 

 is suggested. The smaller series of stemless points is, in part, iden- 

 tical to groups 1-3 from Site 13JH2 and to the Nebo Hill materials. 

 The Illinois Valley Type 2 (ibid., p. 55) absorbs the remaining stem- 

 less forms. The Hthic materials, considered in themselves, suggest 

 the possibility of a late Archaic to Middle Woodland temporal range. 

 Nor is the postmold pit pattern more instructive. Plabitation struc- 

 tures have not been widely reported in the literature bearing upon 

 Woodland problems. Under the circumstances, and lacking a com- 

 plete recovery of data, the pattern excavated at 13JH201 cannot be 

 unequivocally described as a house structure, but a complete house 

 plan from beneath mound No. 9 at the Havana Site (McGregor, 

 1952, pi. 16, p. 51) has features that are suggestively similar. The 

 artifacts and postmold pattern of 13JH201 are definitely associated 

 (above). On the basis of stratigraphic occurrence, the artifacts must 

 be contemporaneous with or postdate the remnant structure. As a 

 consequence, and even though the large stemless points might in- 

 dicate an earlier date, a Woodland affiliation seems probable. 



WOODPECKER CAVE (13JH202) 



More truly a rock shelter, the Woodpecker Cave site is situated 

 within a bedded limestone exposure 10 feet above the flood plain of 

 a southwest-trending affluent of the Iowa River. A habitation plat- 

 form 50 feet in length and averaging 7 feet in width is situated at 

 the top of a steep, dormant, talus slope (fig. 18; pi. 21, a). A wide 

 overhang, 17 feet in height, gives protection to the occupation area. 

 The northeast portion of the overhang develops into a low irregular 

 cave (pi. 21, b). Both cave and overhang were originally meander- 

 cut, consequent upon a marked increase of water volume in the valley 

 below. More recently, stream erosion has been amplified by mechan- 

 ical weathering. As a consequence, rock fall in the occupation area 

 is abundant. 



The occupation platform and cave were excavated almost in their 

 entirety (pi. 22, a,b). The outer portion of the talus slope was only 

 partially sampled because of the encumbrance of rock fall and heavy 

 tree growth. A grid pattern of 5-foot squares, numerical along its 

 SE-NW axis and alphabetical along its NE-SW base, was utilized 

 as a means of horizontal control. The NE-SW axis paralleled the 

 crest of the talus slope forming the outer margin of the habitation 

 platform. Vertical controls were based upon 0.5-foot excavation 

 units, related to surface datum in the northern corner of each square. 



The surface of the cave and occupation platform, particularly in 

 the northeastern portion, showed considerable disturbance apparently 

 resulting from rodent action and the trampling of livestock. 



