Gary, do the mounds mentioned below seem similar to the ones on Pecan Island? The explanation of the formation of the mounds on Grand Lake is probably inaccurate. While not in Vermilion Parish, perhaps you can compare these mounds to the mounds in our parish, or at least note their existence. The quoted paragraph is taken from page 427 of the Louisiana A Guide to the State of Louisiana. This book was compiled by the "Workers of the Writers' Program of the Work Projects Administration in the State of Louisiana," and was printed first in 1941. "Twelve miles long and eight miles wide, Grand Lake is the largest lake in the Atchafalaya Basin. At intervals along its shell-lined shore are cone-shaped shell mounds, each with a large oak growing from the crest. These kitchen middens, the refuse heaps of ancient Chitimacha feast, were built up through the years as the aborigines discarded food shells and bones." I wonder if these mounds still exist. Ken Dupuy