File:Annual report of the United States Geological Survey to the Secretary of the Interior (1899) (14761056474).jpg

Identifier: annualreportofun2171geol (find matches)
Title: Annual report of the United States Geological Survey to the Secretary of the Interior
Year: 1880 (1880s)
Authors: Geological Survey (U.S.)
Subjects: Geological Survey (U.S.) Geology Water-supply Forest reserves Mines and mineral resources
Publisher: Washington : G.P.O.
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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ivers; in Erath, Bosque, and Hamilton counties,about 50 miles in length; the Hamiltondivide, lying between Cow House and theLampasas, which extends from eastern MillsCounty nearly to Belton, a distance of 65miles; the Lampasas-San Gabriel divide,extending from west of Strickland, BurnetCounty, to Florence, Williamson County, 22miles in length; the Bertram divide, in Burnets ; s, and Williamson counties, between the northand south forks of the San Gabriel, some 20miles in length; the Bagdad divide (or Post; ; g, Oak Ridge), between the south fork of theSan Gabriel and the Colorado in Williamson;If. ; ; f and Travis counties, about 20 miles in length. S c a 9 — o — Si 3 cx o i ^ M a a o £ S« a a g j; ^ a C a a p « 3 5 c S ^ — C2 I a ; Shorter secondary arms extend southeast- * I - a ward from these main divides between the 53 > 9 ^ _ S ° I principal creeks, such as Bennett, Sims, Big ■°; II £ I 7. Lucy, Donaldson. Mesquite, North Rocky. I South Rocky, and Miller creeks.
Text Appearing After Image:
OF THEUNIVERSITY of ILLINOIS HILL.) WESTERN CROSS TIMBERS. 81 SUBDIVISIONS OF LAMPASAS CUT PLAIN. The vast surface of the Lampasas Cut Plain is scored by the drain-ways arising near the western border into many valleys, which are cutbelow the old level of the plain into older and older belts of strata.These valleys within the area are bordered by escarpments like thosefound along its western margin. The wide slopes of these valleyescarpments descend in series of benches based upon various forma-tions underlying the cap rock of the cut plain, each of which producesa soil and vegetation characteristic of a peculiar type of country. (Seefig. 5.) These intaglioed belts will now be described in descendingseries. Walnut Prairie.—The first of the types of countiy resulting fromthe dissection of the cap rock of the Lampasas Cut Plain has beennamed the Walnut Prairie, after its typical development in the vicinityof Walnut, Bosque County. This has a shallow, black soil with ayellow-clay found

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