In the Los Angeles region, nearly 98% of historical wetlands have been lost due to deposition and development. The Ballona Wetlands Ecological Reserve, at nearly 600 acres, is the largest remaining contiguous portion of wetlands in the region, but has experienced decades of land degradation, with only 153 acres considered as delineated wetlands. As one of the last and largest pieces of wetland, it represents a significant opportunity for restoration.