I'm looking to do a hiking trip this summer with some buddies and I was scouting on onX and Google to find some fun, less traveled trails. I came across Lost Lake trail in between Silverthorne and Heeney. It looks like a pretty easy hike and I wanted to make it a little more adventurous by adding on some additional trails and possibly going off trail a little bit. I found a trail called "South Rim Black Creek 64.1A" on onX that runs a little further west and ends. From there I was thinking about going off trail until we ran into Bubble Lake. Only thing is I cannot find any info on South Rim Black Creek 64.1A trail. I even called the Dillon ranger office and the person I talked to there had no idea what I was talking about. I'm guessing it's an unmanaged trail. Hoping to find someone on here who's familiar with this area and could steer me in the right direction. The image on the left is my proposed route. Taking the purple line there and the red line back. The image on the right is the trail in question.