As you've seen, we are planning two river viewpoints. It's been suggested that we construct small shelters at these locations, and I'm interested in hearing what others think of that idea.
In the meantime, the plan is to include an interpretive panel at each river viewpoint. For subjects, my first thought is to have one explaining how rivers change course over time, the forces of erosion and what man-made structures can affect erosion. This panel would be at the end of the southern trail and include historic aerial views of the river, which show how it's changed over time.
The second panel would discuss the Pigs Lake habitat, how it's created by groundwater levels fed by the Mokelumne River and the critters that call it home. Wood ducks, for example, breed here. The panel also would include some history, such as why it's called Pigs Lake.
If you have ideas on other subjects that might be more relevant to these locations (and don't duplicate the wildlife/watershed information provided at the entrance to the Nature Area), please leave your suggestions.