Recently, a story ran on Cincinnati.com about work done by GAI Consultants, a Cultural Resource Management (CRM) firm, who conducted archaeological investigations for a large gas pipeline project. Below is a link to the article.
http://news.cincinnati.com/apps/pbcs.dll/article?AID=%2FAB%2F20110530%2FNEWS01%2F105310316%2F
Curated at the Ohio Historical Society, this collection, A4913 Phase I-III Archaeological Data Recovery at Site 33Wa823 Rockies Express Pipeline East Project, Warren County, Ohio, contains project records and over 36,000 artifacts.