Warren Ballpark
The ballpark was recently home to the Tucson Saguaros of the Pecos League and the Bisbee-Douglas Copper Kings of the independent Arizona–Mexico League The Stadium was built in 1909 by the Calumet and Arizona Mining Company ( which later merged with Phelps Dodge ) as a recreation for the miners and their families , pre-dating the construction of Chicago's Wrigley Field by nearly five years . 
<triplet> Bisbee-Douglas Copper Kings <subj> Arizona–Mexico League <obj> league