j ú car ▁and ▁Col ot lán . ▁Other ▁groups ▁included ▁the ▁Gu ach ich il ▁in ▁the ▁Los ▁Alt os ▁area , ▁the ▁N ahu at l ▁speaking ▁C uy ut ec os ▁in ▁the ▁west , ▁the ▁T ec ue xes ▁and ▁C oc as ▁near ▁what ▁is ▁now ▁Gu adal aj ara , ▁and ▁the ▁Gu am ares ▁in ▁the ▁east ▁near ▁the ▁Gu an aju ato ▁border . ▁ ▁Short ly ▁after ▁the ▁con quest ▁of ▁the ▁Az te cs ▁in ▁ 1 5 2 1 , ▁the ▁Spanish ▁pushed ▁west . ▁They ▁over power ed ▁the ▁Pur é pe cha ▁in ▁Mich o ac án , ▁converting ▁their ▁capital ▁of ▁T z int z unt zan ▁as ▁a ▁base ▁to ▁move ▁further ▁west . ▁ ▁One ▁reason ▁for ▁the ▁push ▁towards ▁the ▁Pacific ▁was ▁to ▁build ▁ships ▁and ▁sh ipping ▁facilities ▁in ▁order ▁to ▁initi ate ▁trade ▁with ▁Asia . ▁Another ▁draw ▁was ▁to ▁find ▁more ▁min eral ▁wealth ▁as ▁the ▁Pur é pe cha ▁had ▁already ▁developed ▁co pper ▁working ▁along ▁with ▁silver ▁and ▁gold . ▁ ▁In ▁ 1 5 2 2 , ▁Crist ó bal ▁de ▁Ol id ▁was ▁sent ▁by ▁Hern án ▁Cort és ▁north west ▁from ▁Mexico ▁City ▁into ▁J alis co . ▁ ▁Other ▁inc urs ions ▁were ▁undert aken ▁by ▁Al onso ▁de ▁A val os ▁and ▁Juan ▁Al vare z ▁Ch ico ▁in ▁ 1 5 2 1 , ▁Gonz alo ▁de ▁Sand oval ▁in ▁ 1 5 2 2