About 3.6 miles round trip, starting at the trailhead at the end of the lower parking lot
There is a sign at the lower end of the parking lot, at the trailhead,, which says, "Switzer 1" That implies it is 1 mile. However, the falls, themselves is about 1.8 miles from that sign. There is an area you arrive at with old rusty, long unused cooking stoves at about the 1 mile mark. That is only about halfway to the falls. I believe that is what the sign is claiming to be "1 mile" distant.
Add an extra one mile round trip if the lower parking lot is closed, which it has been a lot recently.
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