The sun's absence in this arid region wasn't the only surprise that night.

Irrigation, combined with new hybrid seeds, fertilizer, and pesticides continued to bring high productivity to an arid region.

In this largely arid region meeting demand for water also remains a constant challenge.

The intermontane valleys, plateaus and basins range from treeless to desert with the most arid region being in the southwest.

This area of sand dunes often has sea fog rolling in which supplies some moisture in an otherwise arid region.