There were the creek and spur tracks in the mid '80's. The creek track became chewed up from the challenge and preferential traffic, and the spur track was already in as a bypass for management vehicles. Eventually parks closed the creek track and then after the spur track started to degrade, they did a re-alignment to get all traffic off the valley floor - how it is today. the valley has recovered undergrowth wise, but fuel load is way up with the removal of cattle grazing.