Matching Items (3)
Filtering by
- All Subjects: Grand Canyon (Ariz.)
- All Subjects: Tourism
- Creators: American Journal of Science
- Creators: Evans, R. T.
- Creators: Lemen, Richard
ContributorsMaxon, John H. (Author) / Campbell, Ian (Author) / American Journal of Science (Publisher)
Created1934-10-01
DescriptionExcerpt on the Archean Ripple Mark in the Grand Canyon.
ContributorsMatthes, F. (Author) / Evans, R. T. (Author) / The Military engineer (Publisher)
Created1926-05
DescriptionGeological Survey of the Grand Canyon in published journal. Vol. XVIII, No. 99.
ContributorsGrant, Michael, 1951- (Host) / Bommersbach, Jana (Commentator) / Lemen, Richard (Interviewee) / Witten, Mark L. (Mark Lee), 1953- (Interviewee) / Public Broadcasting Service (Broadcaster)
Created1986-11-18
DescriptionRuss Butcher In-Studio Interview (Taylor); Grand Canyon Package (Taylor); Bommersbach Byline #32: Arizona Weather Package (Durrenberger); Smokeout Package (D'Alli). Segments on issues with sightseeing flights over the Grand Canyon, Bommersbach's Byline (meteorology), and research on the connection between smoking and lung cancer.