Pima cotton was developed in the Southwestern United States in the early 1900s. The name Pima was given in honor of the Pima Indians, who helped raise the first experimental plants in Sacaton, Arizona.
Pima rivals Egyptian cotton in softness and luxuriousness. American Pima is grown in Arizona, California, New Mexico, and Texas. All cotton in the United States is machine harvested.
-from Knitter's Review
