Transportation Facilities Through Difficult Terrain: Proceedings of the Conference on Transportation Facilities Through Difficult/Aspen-Snowmass/Col

Proceedings of the conference held 8-12 August 1993 at Aspen-Snowmass, Colo. From here it was only a short drive to see the corruption worked on a splendid canyon of the Colorado River by the proud, pestilential engineers that spewed Interstate 70 into Glenwood Canyon. Papers celebrate many such highway blights and too few tunnels. No index. Annotation copyright Book News, Inc. Portland, Or.