Sand Valley?

Does anyone know anything about Sand Valley in the Rock 'n Road? Seems like it's not actually different than Sand Rock. The Dixie Cragger Atlas says Whimsical Promise is at Griffen Falls and doesn't mention the other "classic" Boardwalk at all that Rock 'n Road mentions. Any ideas?

I'm not sure, but if you go to Sand Rock, (the parking lot) there's an old fourwheel drive/fourwheeler road that continues on the ridge past the parking lot for about a mile or maybe two, it comes to sand valley ( cluster of rock ). Might be carefull of access, private property.Rock-n-Road is a little out dated, some thing's have changed.