here constitute the boundary of the Plateau Province. Awapa is a Ute name signifying "Many waters."

All three of these plateaus are remarkable for the many lakelets found on them. To the east are the Henry Mountains, a group of volcanic domes that rise above the region. The rocks of the country

INDIANS GAMBLING.

are limestones, sandstones, and shales, originally lying in horizontal altitudes; but volcanic forces were generated under them and lavas boiled up. These lavas did not, however, come to the surface, but as they rose they lifted the sandstones, shales, and limestones, to a thickness of 2,000 or 3,000 feet or more, into great domes. Then the molten lavas cooled in great lenses of mountain magnitude, with the


RUIN NEAR MOENKOPI.