I snowshoed the Berg Lake trail to the north end of Whitehorn basin to the waterfalls by the old metal bridge that is no longer there as well as close to Berg Lake itself! The trail is now open for winter, all the way to Berg Lake since the area is covered is ice and snow the summertime dangerous are not an issue.

GaiGPS track: https://www.gaiagps.com/map/?loc=11.7/-119.2419/53.1250&pubLink=pqRdesqhFoNboitG3ZGhFQV9&trackId=09fb1fb1beee02c9dcb57e9cbd56a1e9716c9504