Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
Broad alkaline playa and historic borax source in southwestern Mineral County, now part of the Marietta Wild Burro Management Area on BLM land. Late-19th-century borax works fed early Pacific Coast markets; today the white flats, residual earthworks, and free-roaming burros make a stark geology-and-landscape stop west of the Candelaria–Marietta country. Collecting focus is landscape/geology interpretation, not unprotected diggings.