Bunny slopes to black diamonds — a Colorado artist gave us a better way to get down mountains. Hal Shelton felt maps should look like what you see. In the 40s, he made maps for the Air Force, with ...
Running title: Notes on northern geology. At head of title: Geological and Natural History Survey of Canada. "Published by authority of Parliament." siris_sil_458303 ...
River reach / John R. Stilgoe -- Introduction -- Natural history and environment -- Transportation -- Trade, commerce, and industry -- Culture and symbol siris_sil_957400 ...
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