Crushed stone is the product resulting from the artificial crushing of rocks, boulders, or large cobblestones, substantially all faces of which have resulted from the crushing operation. BLM generally considers crushed stone sources a saleable mineral, which must be purchased from BLM. Some producers focusing on the Phoenix metropolitan area have searched for ways to avoid purchasing these minerals, thus avoiding payments to the BLM. One of the more common ways is to claim that the mineral material is “locatable” instead of saleable.

For over 15 years, interdistrict open enrollment and charter schools have allowed Arizona families to send their children to the public schools of their choice, regardless of where they reside. To better understand how parents “shop” within Arizona’s public education marketplace, this issue examines the mobility of elementary school students among districts and charter schools in the Metropolitan Phoenix area.