Walls and Paths Built to Endure-Landscape Designers Return to the Natural Look of Stone Steve Dryden, Washington Post 10 February 2000: T15
Richmond Canal Project Helps Make History Greeley and Hansen - Environmental Engineers Rock On - Under Mason's Hand, Stone Turns Into Something Much More Teresa Brumback, The Warren Sentinel 24 November 1999 Booth's Mill Bridge Over Antietam Creek Excellence in Highway Design, Federal Highway Administration 1996