Oops,
It was brought to my attention that a reference I posted in my response
to Myth Busting listed the wrong year. It should have read Dunham and
Franzen 1997 (not 1999) with the complete reference as follows:
Dunham, S. and J. Franzen
1997 Bottles and Berms: Test Excavations at Four Pine Era Lumber
Camps in Michigan's Upper Peninsula. The Michigan Archaeologist 43
(2/3):127-152.
Sean