dust control measure. The vegetation consists of saltgrass, which is a native perennial grass highly tolerant of the salt and boron levels in the lake sediments. Gravel covers are also used. Ecology This once-blue saline lake was an important feeding and resting stop for millions of waterfowl each year. During a visit to Owens Lake in 1917 Joseph Grinnell from the Museum of Vertebrate Zoology in Berkeley reported "Great numbers of water birds are in sight along the lake shore--avocets, phalaropes, ducks. Large flocks of shorebirds in flight over the water in the distance, wheeling about show in mass, now silvery now dark, against the gray-blue of the water. There must be literally thousands of birds within sight of this one spot." Owens Lake is still recognized as an Important Bird Area in California by the National Audubon Society. At the shore, a chain of wetlands, fed by springs and artesian wells, keep part of the former Owens Lake ecosystem alive. Snowy plovers nest at Owens along with several thousand snow geese and ducks. As a result of current dust mitigation efforts, shallow flooding of the lakebed has created both shallow and deeper (about deep) habitats on the lakebed. This water, although seasonally applied, is helping to buoy the lake's ecosystem causing hope in conservationists that an expanded shallow flooding program could do even more. There are no serious plans, however, to restore Owens to anything resembling a conventional lake. On April 19, 2008, the Eastern Sierra Audubon Society, Audubon California, and the Owens Valley Committee held the first lake-wide survey of the bird populations of Owens Lake. Volunteers recorded a total of 112 avian species and 45,650 individual birds — the highest total number of birds ever officially recorded at Owens Lake. Volunteers identified 15 species of waterfowl (ducks and geese) and 22 species of shorebirds. The highest totals for individuals of a species included 13,873 California gulls (an inland nester at Mono Lake and elsewhere); 9,218 American avocets; 1,767 eared grebes; 13,826 peeps or small sandpipers such as dunlin, western and least sandpipers; and 2,882 individual ducks. Local industry Cerro Gordo Mines The town of Cartago, below the Sierra Nevada near present-day Olancha, California, was the western shipping port for the Cerro Gordo Mines production and transported goods across Owens Lake with the northern ports of Swansea and Keeler directly below the mines. From Cartago a barge-like vessel,