Folio (21 4/8 x 18 6/8 inches). 6 pages of explanatory text. 24 fine chromolithographic maps, including some double-page. Original brown cloth, gilt (extremities just a little rubbed).
Provenance: with the ink library stamp of the library of the State Agricultural College, Fort Collins, Colorado.
First edition and an attractive copy. A "...brief descriptive text and maps depicting the area's topography, geological formations, deposits of economic value, and the underground structure of the rocks. More than 50 design patterns were used on the geological maps to identify the various classes of sedimentary, igneous, and metamorphic rocks within the U. S." (Schwartz). Hague was one of five official geologists for the United States Geological Survey, and in 1883 Hague and his team, "...including geologist Walter Weed, physicist William Hallock, and chemist Frank Gooch, began to map and study the geology of more than 3,000 square miles in the decade-old Yellowstone National Park and adjacent areas of Wyoming and Montana. Hague focused his own investigations on the nature and origin of the park's geysers and hot springs, spending nine years in continuing and expanding work begun during the 1870s by federal geologist Albert Peale to include the forest-reserve areas west of the park. Hague also studied the Tertiary volcanic rocks at the north end of the Absaroka Range. He recognized that protecting the park's resources depended on the conservation of adjacent forests, watersheds, and wildlife. He recommended successfully in 1891 the establishment of the Yellowstone Forest reserve east and south of the park. Most of the results of the Yellowstone project appeared as the text (part 2, 1899) and 1:125,000-scale atlas (1904) of "Geology of the Yellowstone National Park" as "USGS Monograph 32" [as here]. Earlier versions of the topographic and areal geologic maps of the six quadrangles in the 1904 atlas comprise folios 30 (1896) and 52 (1899) of the "Geologic Atlas of the United States". Phillips, Atlases 1283. Schwartz,.plate 195 & pp. 314-5.