Arizona officials refer to a notoriously congested stretch of desert highway through tribal land as the Wild Horse Pass Corridor, a label that's less about horses than the bustling casino by the same name located just north of where the interstate constricts to four lanes.
With the Gila River Indian Community's backing, the state allocated or raised about $600 million of a nearly $1 billion plan that would widen the most bottleneck-inducing, 26-mile section of I-10 on the route between Phoenix and Tucson.
