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<br />1:2 HISTORY OF CO~SERVAT10~ I~ THE ~llSSOUH1 VALLEY
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<br />that raw shale from several hundred feet below the surface
<br />will grow \"cgetation after short exposure to sunshine and air.
<br />It is also tnlc that a tree will grow on almost solid rock, how-
<br />evcr the soil the farmer loves was gradually built up at the
<br />a\'crage rate of one inch in five hundred years by the slow
<br />aecuITIulation of dead vegetable matter, roots and residue.
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<br />\Vhen the continent including this basin rose in elevation,
<br />the ancient sea flm"'t'd in all directions, eroding such land marks
<br />as the Grand Canyon and the Bad Lands of the Dakotas. Also
<br />over the entire basin are found evidences of violent water mon~-
<br />ment in the form of huge {Jllicksand deposits and gravel hills.
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<br />- Soli ConservatIon Sen'lce Photo.
<br />West of the Missouri River we rlnd a hu~e empIre. a cattleman's paradise.
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<br />The glacier epoch of 25.000 years ago can be thanked for
<br />its man\' benefits to the .\lissoun basin. :\ot the least is the fact
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