I stopped at the East Cle Elum launch yesterday on my way home from work. When I got there, a hatch of March Browns (guess - could not catch one) were just starting to lay eggs. I dallied and watched for about a half hour. The sun was right and I could see the bottom. The fish started to appear as they rose in the water column. Little ones first then some larger ones came up underneath. Pretty cool watching them work the surface as the bugs bounced off the surface. By the time I left there were about 14 or 15 fish of different sizes sipping and flipping. Had not seen this kind of action up close and in slow motion with the right light, clear water and the vantage point I had from above (at least not a video).