LATE & EARLY SEASON FISHING AT DEPUY'S SPRING CREEK (part 10)
Riffles in spring creeks are "food conveyors" for trout. Shallow structures let sunlight penetrate water column and cause photosynthesis with aquatic weed-beds. Tumbling water is oxygenated and typically cooler than calm/flat spots. Combining these two facts, riffles produce and host miscellaneous mayfly nymphs, larvae (midge, caddis, and crane fly), and aquatic foods (scuds, sowbugs, snails, and so forth). When stepping into choppy and tumbling surfaces of riffles, every angler must understand that the water column is not moving as fast or strong as the surface.