HATCH WASH In 1915 image of Hatch Wash shows a broad, braided channel with vertical banks. The entire channel is devoid of vegetation. By 1998 this stream segment has improved to a point where banks have evolved to a slope condition, the channel has narrowed, and a floodplain with two terraces has developed. A thick mixture of native riparian species and tamarisk have occupied the site. Native riparian species include Fremont cottonwood, coyote willow, bulrush, cattail, and Baltic rush. Other plants that occur on the terrace areas include saltgrass, rabbitbrush and greasewood. Fremont cottonwood trees are forming a gallery and becoming dominant on the terrace at the left of the scene.