Sub-locations

Name Sites Samples
Apache County 50 235
Cochise County 22 70
Coconino County 100 476
Gila County 33 101
Graham County 35 187
La Paz County 7 18
Maricopa County 180 1084
Mohave County 47 278
Navajo County 110 588
Pima County 181 1245
Pinal County 1 0
Santa Cruz County 50 498
Yavapai County 34 49
Yuma County 32 119