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Robert Bradford Marshall

Publications and source records attributed to Robert Bradford Marshall.

At least 55 records · Page 3Linked to original sources
USGS1914

Profile surveys in Snake River basin, Idaho

Snake River, the largest tributary of the Columbia, rises among the high peaks of the Rocky Mountains in Yellowstone National Park, heading in the divide from which streams flow northward and eastward into the Missouri, southward to the Colorado and the lakes of the Great Basin, and westward to the Columbia. From the headwater region, including Shoshone, Lewis, and Heart lakes, in Yellowstone National Park, the river flows southward, broadening into Jackson Lake (4 miles wide and 18 miles long) and passing through Jackson Valley (8 miles wide and 40 miles long), beyond which, near the Idaho-Wyoming line, it enters a long canyon. At the south edge of Madison County, Idaho, it receives Henrys Fork, below which the Snake flows southward and westward across Idaho to a point near Homedale, near the Oregon-Idaho line, where it turns abruptly northward and beyond which it forms for about 170 miles the boundary between Idaho and Oregon and for 30 miles more that between Idaho and Washington. It enters Washington at Lewiston, flows northwest, west, and southwest, and joins the Columbia near Pasco.

Idaho;Nevada;Oregon;Utah;Washington;Wyoming↗
USGS1914

Profile surveys in Bear River basin, Idaho

Bear River rises on the northern slope of the Uinta Mountains, in the northeastern part of Utah, and after a circuitous course in which it leaves Utah and enters Wyoming, Utah, and Wyoming in turn and makes a long detour in Idaho it returns to Utah and finally discharges its waters into Great Salt Lake. The maximum elevation of the upper rim of the basin is 13,000 feet above sea level. The upper part of the basin comprises a rough, broken country, well drained by numerous short streams, most of which are confined to steep, narrow canyons. The streams are fed by many small springs and by the melting of the snow which forms the greater part of the precipitation. The rocks of the extreme headwater region are chiefly sandstones and quartzites and are covered with a thin layer of soil that supports scattered groves of fir and aspen. A few small lakes lie near the head of the river.

Bear River Basin↗