Tent Caterpillars in Posta Que Mada Canyon.
Tags: arizona,colossal cave mountain park,pima county,posta que mada canyon,rincon mountains,tent caterpillar

Tent Caterpillars near Cinega Creek.
Tags: arizona,cienega creek,empire ranch,empire-cienega area of critical environmental concern,las cienegas national conservation area,pima county,tent caterpillar,tucson field office