are you planning to finish mapping out way 859083906? it is currently invalid

The JMT/PCT has been rerouted and no longer matches older satellite imagery, I previously corrected this in osm.org/changeset/89875832

Here is another example: the Dog Lake Trail runs from the Dog Lake Trailhead to Dog Lake. This is an unnamed connector trail.

The John Muir Trail runs further west over Cathedral Pass and the trail up Rafferty Creek starts at the Rafferty Creek Trailhead and is usually known as the Rafferty Creek Trail. If you are using the 2018 US Topo please be aware that many of the names in Yosemite are wrong. The older USGS quads or Yosemite GIS are better references.