On May 18, children of Elk Run School located a little to the south and east of Waterloo, were taking a nature study trip when one of the boys discovered a large bone partially submerged in the water of Elk Creek, a tributary of the Cedar River. The location of the discovery was in the south east portion of Section 6, Waterloo Township. The bone had evidently been washed from its original place of interment during the recent floods of the Cedar River. The bone is the humerus of a mastodon which roamed this area during interglacial times. The bone, although considerably weathered on the exposed end, was in a fairly good state of preservation; only one of the condyle processes was missing. It is quite evident from the state of the bone that it has been partially exposed, at least one end of it, for some time, as the exposed part was quite brittle and weathered.
Proceedings of the Iowa Academy of Science
©1952 Iowa Academy of Science, Inc.
Cable, E. J.
Proceedings of the Iowa Academy of Science, 59(1), 231-232.
Available at: https://scholarworks.uni.edu/pias/vol59/iss1/29