Sierra National Forest has issued a closure order for Dusy Ershim and Swap Trail for the remainder of the 2017 year; effective August 10, 207 through November 1, 2017.
The formal closure (with map) may be downloaded from the below link.
The order cites significant trail damage that requires repair to prevent further trail damage.
Forest Order 05-15-52-17-13 Dusy Ershim and Swap Trail Closed