Several locations on the margins of the Yakima River in Washington were sampled to determine what insects were active in the river in mid-February. All areas sampled were along riffles in less than one foot of water. There were two types of stonefly nymphs present in the margins of the Yakima River that I picked up while screening. The darkest bodied ones were the largest and most active and have been identified as Golden Stones. The smaller stones were identified as Summer Stone's and not Skwala's as I had been hoping to find. Many thanks to Roger Rohrbeck at http://www.flyfishingentomology.com for identifying the stones. The count was about eighteen short-wing, two goldens, one crawler mayfly (no pictures) and several aquatic worms (one bad picture.) Images have been cropped and batch processed for web display. All files are Copyright © 2006 J. Andrew Towell Please contact me at troutstreaming@gmail.com to negotiate for any and all usage rights.