I know of two lines in the gully that houses the trail between the Basin and the second pullout. Ones up high, almost at the notch. The other is out front of the stone wall and crosses that gap. The anchor is accessed via the stone wall approach, then bear left onto the block above it.
There used to be a line in the first pullout, but the anchors were on a major trail, so they were removed some years back.
You can bolt legally in most of the hills, so I wouldn't be surprised if there are several high line anchors around.