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.