Would it be worth are time to try to work that area?
Absolutely. If you're wandering aimlessly (like I usually do), start simple by looking for the obvious thing like water, which you've found. Then location's relevance to water, which you have by finding the higher banked side. Then material, like debitage, for example. etc.
IMHO and my 2 cents worth from what I've learned from hangin out here.