Falls on horizontal beds are common and survive on the headwater branches of even mature rivers.
The falls of such headwater streams must persist until the plateau is cut away, for the cap rocks over which the streams leap being horizontal cannot be smoothed down till the whole plateau is cut through.
Gilbert first showed in the Sierra Nevada that headwater glaciers eroded more rapidly than nonglacial agents under comparable topographic and structural conditions.
At the time this observation was made its significance was a mystery, but it represents a condition so constant that it forms one of the striking features of the glacial forms in the headwater region.
In many headwater basins the cirque whose wall at a distance seemed a unit was really broken into two unequal portions; a lower, much grooved and rounded portion and an upper unglaciated, steep-walled portion.
The Verde is the principal river of central Arizona, for the most part flowing southward, though it starts northward by the headwater called Granite cr.
His "fine stream" is a headwater of that river which falls into the Rio Grande by Ringgold Barracks, and whose two main forks are known as Rio San Juan and Rio Salinas.
These high headwater basins are always windy; the timber is scrubby spruce with many open places, and in such open places the trail is soon obliterated altogether.
Possibly there are underwater connections between some ponds and the headwaterstreams of the Rio Mesquites.
In the basin, however, I know of no evidence of a direct aquatic contact between the headwater streams and the isolated, clear-water, ponds.
When the headwater streams captured the drainage of the Siluro-Devonian monocline on the western side of the ancient dividing anticline, they developed subsequent rectangular branches growing like a well-trained grape vine.
And the smaller headwater structures needed for water supply, flood control, and other purposes throughout the Basin can quite often be designed to function as first-rate recreational attractions too.
These small headwater reservoirs, designed primarily for local flood prevention, may include storage for sediment, water supply, water quality control or recreation.
In the category of reservoirs, at the other end of the spectrum are the comparatively small headwater dams that the Soil Conservation Service has been designing and supervising for three decades in authorized watersheds throughout the country.
An interim solution to the local problem, though possibly not satisfactory in the long run, can be found in a system of small headwater reservoirs.
In headwater areas or small urban watersheds scattered throughout the Basin, there are a number of other places where some damage takes place, whether agricultural or structural.
Preliminary studies indicate that headwater reservoirs are needed and feasible in 61 small watersheds in the Basin.
The headwater dams are equally effective in reducing flood damages in small rural watersheds where losses warrant their installation.
And now that we are agreed that the two lakes belong to the drainage area of the Sutlej, the question is: Which of the rivers debouching into Tso-mavang is the headwater of the Sutlej?
The easternheadwater comes partly from the Samye-la, partly from mountains adjoining on the south-west.
See New Year Festival Lo-shung, the, headwater of the Raga-tsangpo, ii.
The headwater valleys of the three rivers we have named, resemble each other in all essential particulars.
Thence it resumes the northwesterly direction and proceeds into the upper Nonni Valley until the headwater is reached.
Thence turning more eastward the line proceeds across the headwater of the Lukiang to that of the Yangtze by passing many valleys, streams, and mountain passes.
This point is the headwaterof our projected ocean passage, the pivot of the railway system of China Proper, and will become the most important commercial metropolis in the country.
The large lake he saw was a headwater of the Big Salmon, the southern sources of which tradition placed in the bad-lands north of the Ghost.
But what he did fear was the possibility of weeks of wandering in his search for the main stream, lost in a labyrinth of headwater lakes where game might be scarce and fish difficult to net.
The headwater country is most beautiful The stream is not over ten feet wide, but very deep, swift, and clear.
Above the spring, a board was nailed to a tree, saying that this is the headwater of the river with the beautiful Indian name, Susquehanna.
The little spring that is the headwater of the system is but one of many pockets in the hillsides that hold the water that soaks into the ground and give it out by slow degrees.
