Bureau of Land Management, California.
The 36,000-acre Fish Slough Area of Critical Environmental Concern (ACEC) is a place where geographic isolation, geology, climate, and hydrology have created a rare and irreplaceable ecosystem. Located in the transition between the Mojave Desert and Great Basin biomes, Fish Slough encompasses an array of plant communities, including wetlands, alkali meadows, and uplands. With 126 taxa described, Fish Slough represents one of the richest wetland floras in the Great Basin. The ACEC also provides habitat for rare endemic plants, such as the Fish Slough milk-vetch and the alkali Mariposa lily.
From Bishop, take Highway 395 north to the "Y" with Highway 6. Drive north on Highway 6 about 1.5 miles. Turn west on Five Bridges Road and drive about 2.5 miles. Shortly after the sand and gravel plant, turn right at the information kiosk onto Fish Slough Road. Drive one mile, cross a cattle guard, and travel 5.5 miles to the fenced ponds. Marshlands will be on the east side of the road as you drive to the pond.