USFS, USNPS mull ways to get rid of unnatural gully in Yosemite NP's Ackerson Meadow

Staff from Yosemite National Park and the U.S. Forest Service are beginning to look at how best to rehabilitate Ackerson Meadow.

The meadow, not far inside the park's Big Oak Flat Entrance, is the largest mid-elevation meadow complex in Yosemite. Currently, a large unnatural erosion gully, up to 14 feet deep and 100 feet wide, is actively draining 90 acres of former wetlands in the meadow and threatening an additional 100 acres of wet meadow habitat.

https://www.nationalparkstraveler.org/2020/07/yosemite-national-park-detailing-restoration-options-ackerson-meadow