Found at Syzygy Phenom:
http://www.angelfire.com/ut/branton/kokoweef.html

"Our foundation has located a vast system of underground passages in the Mother Lode country of California. They were first discovered in 1936, ignored by all even with our best efforts to reveal them. Recently a road crew blasted out an opening verifying our claims. ONE (of the chambers is) 200 feet long, 70 feet wide and 50 feet high. We have disclosed what we believe to be a vast subterranean drainage system (probably traversing the Great American Desert country for a distance of more than 600 miles). We believe this system extends out like five fingers of your hand to such landmarks as Zion Canyon in Utah, the Grand Canyon, another runs south from the Carson Sink in Nevada and yet another follows (below) the western slope of the same range, joining it's counterpart and ending somewhere in the Mojave Desert. We believe, contrary to orthodox geologists, that the existence of this underground system drains all surface waters running into Nevada (none, with the exception of the Armagosa runs out) and accounts for the fact that it is a Great American Desert. The hairy creatures that you have written about have been seen in several of these areas. Certainly there has been much 'saucer' activity in these parts. For two years I have collected material pertinent to these creatures and if you have any opinions along these lines I would appreciate hearing them.

This might confirm the allegations made by one anonymous retired Navy officer that the Navy has knowledge of a VAST system or labyrinth of aqua-caverns which meander beneath the surface of California and even into other western states, and that these watery labyrinths exit out into the oceans via huge entrances in the lower walls of the Continental Slope. One of the more extravagant claims is that some of these aqua-caverns are so large that they can be navigated by submarine, and that one nuclear submarine on a secret mapping mission in fact became lost within the maze and was never heard from again. Two American nuclear submarines have disappeared without explanation in the past, the U.S.S. SCORPION and the U.S.S. THRESHER. It is true that one woman who claimed to have had a very strong emotional bond with her husband who worked on the Thresher, insisted at the time that she just 'knew' that her husband was still alive after the 'disaster'. She said that she and her husband had such a spiritual-emotional connection that they always knew when the other was in trouble (For information on the Navy's investigations of the aqua-labyrinths via nuclear subs, etc., see: 'CALIFORNIA FLOATS ON OCEAN?'; article in the March, 1980 issue of John J. Williams' "REBEL MAGAZINE", which at the time was available from: Consumertronics Co., c/o John J. Williams. Pres., 2011 Crescent Dr., P.O. Drawer 537., Alamogardo, NM 88310). The 'Thresher' incidentally 'disappeared' on April 10, 1963 with a crew of 129 men under the command of John W. Harvey, USN.)