Report on the morphology and general geology of Kauai and Niihau.

Reports on the domestic water supply derived from rain caught from roofs and some ground wells. Overall, the island has high aridity, unfavorable geologic structures, continuous deposition of salt spray, and abundant authigenic salts in the lake beds.

The paper is a synopsis of the geology of the Hawaiian Islands. It covers the Island of Hawaii (Mauna Kea, Mauna Loa, Hualalai, Kohala, Kilauea), Island of Maui (Haleakala), Island of Kahoolawe, Island of Lanai, Island of Molokai (Kalaupapa), Island of Oahu (Waianae Range, Koolau Range), Island of Kauai, Island of Niihau, Offshore islets, Leeward islands.