Lower Broken Creek is the section of Broken Creek that flows from the confluence with Boosey Creek near Katamatite to the River Murray near Barmah. Nine Mile Creek is an anabranch that leaves lower Broken Creek at the East Goulburn Main Channel and rejoins it downstream of Numurkah. Both waterways are collectively referred to as the lower Broken Creek.
The lower Broken and Nine Mile creeks and associated floodplain continue to be an important place for Traditional Owners and their Nations. The RAP for this system is the Yorta Yorta Nation Aboriginal Corporation, who were involved in preparing the lower Broken Creek seasonal watering proposal.