▁cattle men ▁of ▁Colorado ▁were ▁unw illing ▁to ▁share ▁their ▁past ures ▁with ▁the ▁she e ph erd ers , ▁who ▁were ▁crossing ▁into ▁the ▁state ▁from ▁southern ▁Wy oming . ▁In ▁Wy oming ▁alone ▁there ▁were ▁about ▁twenty - four ▁attacks ▁and ▁at ▁least ▁six ▁death s ▁between ▁ 1 8 7 9 ▁and ▁ 1 9 0 9 , ▁though ▁other ▁accounts ▁say ▁that ▁over ▁six teen ▁people ▁were ▁killed . ▁The ▁most ▁well ▁known ▁of ▁the ▁conflicts ▁was ▁the ▁Rout t ▁County ▁She ep ▁War , ▁in ▁which ▁the ▁cattle men ▁of ▁Rout t ▁County , ▁Colorado ▁attempted ▁to ▁keep ▁the ▁Wy oming ▁she e ph erd ers ▁from ▁entering ▁their ▁gra zing ▁ranges . ▁On ▁May ▁ 2 3 , ▁ 1 8 9 5 , ▁the ▁newspaper ▁Che y enne ▁Le ader ▁reported ▁that ▁four ▁days ▁previously ▁" rid ers ▁were ▁sent ▁out ▁to ▁sc our ▁the ▁country ▁and ▁warn ▁the ▁sett lers ▁that ▁sheep men ▁now ▁holding ▁their ▁f lock s ▁on ▁S nake ▁River ▁at ▁the ▁Wy oming ▁line ▁[ border ], ▁were ▁cont empl ating ▁an ▁invasion ▁of ▁the ▁Bear ▁River ▁cattle ▁ranges . ▁The ▁effect ▁was ▁elect rical , ▁and ▁by ▁no on ▁today ▁fully ▁ 3 5 0 ▁cattle men ▁and ▁feed ers ▁were ▁assemble d ▁to ▁decide ▁upon ▁positive ▁action ▁to ▁keep ▁the ▁sheep ▁back .... " ▁Short ly ▁after ▁that , ▁the ▁cattle men ▁adopted ▁a ▁series ▁of ▁resolution s ▁that ▁established ▁dead lines ▁and ▁effectively ▁b anned ▁all ▁she e