Study Area Description
CHAPTER 2 EXISTING CONDITIONS/ STUDY AREA DESCRIPTION &KDSWHU#5 :DWHUVKHG#'HVFULSWLRQ 7KLV chapter describes the existing conditions within the Cypress Valley watershed and outlines its major features. Pertinent categories addressed include climatology, physiography, geology, morphology, water resources, environmental setting, cultural resources, social and economic setting, real estate, hydrology/hydraulics, water quality, and recreation. WATERSHED DESCRIPTION The Cypress Valley Watershed is located in northeast Texas and northwest Louisiana. The headwaters of Big Cypress Bayou, which is the major drainage in the watershed, originate in the southwest portion of Hopkins County, Texas. From there, the watershed extends throughout all or portions of Franklin, Wood, Titus, Camp, Upshur, Gregg, Morris, Cass, Marion, and Harrison Counties, Texas. For the purposes of this investigation, the downstream boundary of the watershed is located at Caddo Lake dam, in Caddo Parish, Louisiana. The entire investigation area encompasses approximately 6,000 square miles (Figure 2-1). DETAILED INVESTIGATION AREA The area of investigation was confined to the portion of the watershed adjacent to the Big Cypress Bayou. This detailed area of investigation includes portions of two counties in East Texas surrounding the Big Cypress Bayou from Lake O’ the Pines, through the city of Jefferson, to Caddo Lake and one Louisiana parish (Figure 2-2). The city of Jefferson is shown on Figure 2-3. The area is rich in natural and cultural resources, including Caddo Lake, which has been designated as a wetland of International significance under the Ramsar Convention, and the Historic Port of Jefferson (The location of the historic port is shown in Photograph 2-1).
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