I don't think the 2 creeks ever meet. Denton Creek runs to Justin and Marshall Creek ends at a little lake off 114 in Trophy Club. You may be thinking of what's called Henrietta Hole. Denton Creek meets another creek there and it has a deep hole. The trail starts where the old parking area was on the west side of 377 closest to Roanoke. It's right next to the railroad tracks. Don't think you can park there anymore. Long hike with a stringer of sandies. Good place to try next month. Good luck and hope this helps some.