Nice finds. Ranger George and I were on the South Fork Trail and went to Dollar Lake last Saturday 06/13. A hiker reported seeing some Bighorn Sheep near the grassy spring that is between Dollar Lake Spur junction and Dollar Lake saddle but we didn’t see them. And we thought that they have been mistaken but you seem to confirm it. Thanks.
Also I have a picture of those trees at South Fork trailhead and was wondering if they might be a Giant Sequoia or Coastal Redwood but didn’t see any cones. Here is my picture and are these the ones possibly you are referring to?