62 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Allamakee County — Continued. 



ures occur, located usually at intervals of two miles, on the second 

 bottoms. They range from 75 to 100 feet in diameter, and the 

 embankments vary from 25 to 30 feet in width, and are 2 to 3 

 feet high. He mentions as found in them large stone mortars, 

 ])estles, stone axes, celts, arrow-heads, etc. Stone mortars may 

 attain to 14 inches diameter; pestles are of several styles; celts 

 range from 2]/^ inches length to the size of a blacksmith's sledge. 

 Uncertain location, due to Thomas' misuse of name, Little 

 Iowa, elsewhere ; means, perhaps, the Upper Iowa '73. Near the 

 Mississippi River, a short distance below where the Little Iowa 

 joins it, a group of mounds on the crest of a ridge one-fourth 

 mile from the Mississippi and parallel to it; thirty or more 

 mounds; circular, 20 to 40 feet in diameter. All are burial 

 mounds. Those on the higher sandy ground, although of about 

 the same size and with cores of clay similar to those on the firm 

 clayey portion of the ridge, have an upper layer of 2 feet or more 

 added to them. Under the clay core are decaying bones, pot- 

 sherds, rude stone implements; generally two or more skeletons in 

 a mound, horizontal, side by side, on original surface. On the 

 terrace below were remnants of a row of comparatively lat'gc 

 burial mounds, largely destroyed by railroad. They ranged from 

 6 to 15 feet high, and were chiefly of sandy loam like the neigh- 

 boring soil; each had a central core of hard clay and ashes. 

 Usually one skeleton; relics — chiefly stone axes, arrow- and 



spear- points, and a few copper celts. In one mound, 32 feet 



diameter and 8 feet high, less injured than the rest, was a circular 

 vault of flat, unworked stones, dry-laid, lessening above, and cov- 

 ered by one stone. One skeleton, and a squat and small, glob- 

 ular, earthen vase. This locality is described also by Thomas in 

 his final report. 2" 



Boone County, 



Fulton 59 mentions mound at Moingona. 



Cerro Gordo County. 



On the south bank of Lime Creek, at Hackberry, a small 

 mound on a bluff 70 feet above the stream, has been examined by 

 Webster. '87 The position is a fine outlook point. The mound, 

 partly destroyed by natural agencies, appears to have been origi- 



