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Shooks Run is divided into two separate and distinct reaches: North Shooks Run (Templeton Gap Drainage Basin) and South Shooks Run. The Templeton Gap Drainage Basin (North Shooks Run) originates in northeastern Colorado Springs in a cuplike depression. surrounded by hills. It flows southwesterly along and parallel to Templeton Gap Road, until it is intercepted by the Templeton Gap Floodway and diverted northwesterly to Monument Creek. South Shooks Run begins at the Templeton Gap Floodway, and runs parallel to Templeton Gap Road for approximately 2 miles before flowing southerly for approximately 5 miies to join Fountain Creek near the southern corporate limits. approximately 0.25 mile east of U.S. Highway 85-87. The stream originates in a residential area and throughout its course flows through residential or business areas. Spring Creek originates in east-southeastern Colorado Springs. flows southwesterly, and drains an area of approximately 8 square miles. At a point 0.5 mile upstream of the confluence with Fountain Creek, Spring Creek enters EI Paso County. The Spring Creek valley is relatively wide in the northern two-thirds of the basin, becoming deep and narrow in the lower .one-third. The floodplain is completely devel.oped with long reaches of concrete- lined channels in residential and commercial areas in addition to the Valley Hi Golf Course. Sutherland Creek begins south of the city in the Pike National Forest and has a drainage area of 5.37 square miles at its mouth. The upper basin is vegetated and the lower reach is moderately developed. In many areas, the stream channel is heavily vegetated with thick stands of scrub oak. Templeton Gap Floodway drains an area of approximately 8.5 square miles of the northern pertion of the Shooks Run basin. This Monument Creek tributary originates in northeastern Colorado Springs, southeast of the Austin Bluffs. A section of unincorporated county land is located in the upper reach of the floodway. This area is a fully developed residential area. Will iams Canyon flows through an area of rugged terrain and steep slopes from its headwaters in the Rampart Range north of Manitou Springs. Williams Canyon above U.S. Highway 24 flows in a narrow, rocky, steep-walled canyon; below U.S. Highway 24, it flows through dense residential development. For the final 1,100 feet near the confluence with Fountain Creek, Williams Canyon is enclosed in a concrete box culvert. Its drainage area at the mouth is 2.68 square miles. The Security Creek, Wide field Creek, and Windmill Gulch drainage basins are adjacent and drain the areas north and east of the Security- Widefield community. Windmill Gulch drains into Security Creek, which in rurn drains Into Widefield Creek. Above the Widefield Creek confluence with Fountain Creek, the dralllage area is approximately 15 square miles. The western portion of El Paso County is in the Rampart Range of the Rocky Mountains, while the remainder is in a high-plains region. Elevations range from ]4,110 feet to 5,150 feet at the southern county line. Physiographically, the study area east of Monument and Fountain Creeks is characterized by gently sloping plains; west of the creeks, by mountain ranges and basins. There are some horizontal sedimentary outcrops in the Black Forest area which represent rock formations from the Rocky Mountain uplift some 60 million years ago. Exposed sedimentary rocks along the edge of the mountain front are tilted. Above the sedimentary foothills the pre- Cambrian mountain core is largely of Pikes Peak granite. 9