Anglers trolling at Prosser Creek Reservoir are picking up trout in front of the dam with a flasher and worm setup. Prosser Creek Reservoir is also a great spot for anglers to catch cutthroat trout. If anglers are looking for Smallmouth bass, try fishing the south end of the reservoir or near the dam. Shore anglers fishing for trout or bass should use small jigs or nightcrawlers. Prosser Creek Reservoir is currently at 59% capacity.