Christopher Columbus was thinking he was sailing to india by going west. He was trying to find an all water route to get spices so the italians didnt knock up the price for them. He instead found america where he found "indians".
cabeza de vaca was trying to find gold in texas, instead he shipwrecked and was taken by the karenkawas.
cortez was exploring mexico when he found the aztecs who were the most advanced tribe at the time. He defeated them with desease and took all their gold.
pined was the first european to fin the texas coast where he explored, he found indians wearing gold and asked where it was from they got it and they said apalachee. they went found no gold, came back, made boats and never made it back to spain
coranado was on an expedition to find cibola, the city of gold but later found out they werent real and were only adobe brick houses
la salle explored the great lakes and parts of canada and the U.S. He all claimed the missisipi river for france