Pap. N*!'22Y' CORALVILLE RESERVOIR — CALDWELL 101 



STEATIGBAPHY 



Two distinct strata aro present: 



A. A basal stnicture of yellow-brown loessic clay. A chalky, leached constitu- 



ent, similar to that noted above, was recognized central to the mounded 

 superstructure. Upon the surface of this stratum was a linear grouping 

 and three isolated examples of planar, waterworn limestone slabs (pi. 

 19, a). Each member was markedly fossiliferous. Surface soil was prob- 

 ably stripped prior to placement of the slabs. 



B. Overlying and surrounding the slabs was a soft yellow matrix similar to 



the adjacent field pattern. 



AETIFACTS 



The total inventory of cultural materials was excavated from 

 stratum B: 



1. Conical pipe of pottery (fragmentary) {13JHJf-3,4)' 



Conical body, porous red paste, sand temper, molded hole nonconcentric 



with longitudinal axis of body. Plate 29, a, b. 

 Length : 63.0 mm. 

 Maximum diameter: 28.5 mm. 

 Minimum diameter: 15.5 mm. 

 Bowl fragments deriving from shattering of 13JH4-3 indicate a flat rim and 

 a tapering, internal orifice. 

 Projected rim diameter: 55.0 mm. 

 Width of rim : 14.0 mm. 



2. Convex triangular projectile point, deep corner notches, flaring stem and 



slightly concave base (lSJHJf-10). Plate 23, e. 

 Length: 61.5 mm. 

 Thickness : 8.5 mm. 

 Cross section : Irregularly biconvex. 

 Technique: Percussion, weU controlled. 



3. Chipping debris (sample: 2). 



4. An amorphous fragment of long bone. 



AI7ALYSIS 



Mound No. 6 is summarized as follows: 



Conical form 



Probable removal of turf prior to construction 



Constructed as a single comiwnent 



Artifacts in fill but no other suggestion of derivation from occupation 



area 

 Limestone slabs on stripped soil surface 

 No burial evident 



Mound No. 6 resembles 13JH3, but with the additional presence 

 of limestone slabs situated upon the subturf surface. The stone 

 inclusions do not resemble the "altars" described by McKern (1928, 

 pp. 261-263), but may possibly be equated to the unassociated stones 

 found in Effigy and Hopewell mounds in Wisconsin and Illinois (see 

 Bennett, 1945, tables 1, 2, pp. 96-98; table 7, p. 114). 



