Upper Roach Mill Branch Falls is a cluttered 40-foot waterfall located about 0.3 mile upstream from Roach Mill Branch Falls. Although fairly large, this set of drops is overgrown and tough to see all at once. It may be easier to access via a direct bushwhack from Finney Creek Road rather than heading up from the lower falls. 

To learn about more waterfalls in the Clayton area, see chapter 10 in Mark Ozboyd's "Waterfalls of Georgia" guidebook.