After 12 long, hard years we reached 20 miles of estimated passage length this past weekend in Carroll with 105,667.0 ft (20.01 miles) of included survey length. The milestone was reached in DL7-L2, which is the lengthy south fork of DL7. The cave was nice walking passage with a large room near the 20-mile mark.

Thanks to everybody that made this possible; it’s been a slow, but rewarding grind…

Bob