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