The fly fishing below Mammoth Lakes CA on the Upper Owens river in winter is a special place for any serious fly angler. Mainly because it becomes large trout hunters dream with the stream of over-sized trout swimming up from Crowley lake! Flows are low and water varies between very clear and slightly murky, both presenting different presentation situations. As forecasted the Trout are throughout the Upper Owens system, holding in the deepest pools and darkest runs, corners, and banks. Most part of the mighty Upper O’ are fishing well. It is up to each angler to choose the correct water to fish and take into account how much time to spend in each piece he chooses. All sorts of semi salmon/steelhead reminiscent flies are taking fish. Various midge variations, and Pheasant tails/ soft hackles are other ideas to sink down in the Upper. Streamers patterns fished deep ? of course! Fish these whenever you want in any size. Just get them deep!