Answer:
because it was 1849 when the peak of the gold rush was (when everyone started to go to California)
Open range,in U.S. history, the areas of public domain north of Texas where from about 1866 to 1890 more than 5,000,000 cattle <span>were </span><span>driven to fatten and be shipped off to slaughter. The open ranges of western </span>Kansas<span>, </span>Nebraska<span>, the Dakotas, </span>Montana<span>, </span>Wyoming<span>, and other western states and territories served as huge pasturelands for the herds of the Texas ranchmen.</span>