If you camp at Ollalie, there are several smaller lakes on the southside within hiking distance:
Long Lake
Dark lake
Lake Mary
Timber Lake View lake
NW Skyline Rd, Warm Springs, OR 97761United States 44.799311, -121.785533
Now, I don't have any information about them but you can mapqest ollalie and locate them for consideration.
I've seen many using a fly and bobber from shore at dusk. Just don't have any recommendations for patterns at this time.
Maybe damsel fly nymph and light spruce