STATELINE (AP) — The California Tahoe Conservancy is pushing a new plan to restore the largest remaining wetland in the Lake Tahoe basin, nearly 600 acres of marsh where the Upper Truckee River empties its cold Sierra waters into the south end of the mountain lake. “This will be largest restoration project in the Tahoe basin to date,” said Patrick Wright, executive director of the Conservancy based in South Lake Tahoe, Calif. The wetlands are located east of the Nevada-California line and just west of the Tahoe Keys. Beginning in the late 1950s, portions of the river were straightened and …