USFWS Designated Special Status Species

The following slides contain an overview of US Fish and Wildlife Designated special status species located in the Upper Truckee River Watershed. 

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Floodplain and Soil Data

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Floodplain Information:  The area of the Upper Truckee River Watershed that I am analyzing is the area between the Upper Truckee River and Trout Creek. This area is known as the Truckee River Marsh area. One would think that an area situated between two bodies of water would be subject to flooding. However, as shown in the image below, this area is designated as FEMA flood zone X, which represents an area of minimal flood hazard (FEMA, 2021). Zone X has a 0.2 percent annual chance of flood (FEMA, 2020). Soil Data: This area of the Upper Truckee River Watershed is characterized primarily by Tahoe complex and Christopher-Gefo complex soils (USDA, 2019). Other soils include Watah peat and Marla loamy coarse sand. Tahoe complex soil occurs at 0 to 2 percent slopes, is found at elevations of 6,220-7,970 feet, has very poor drainage, and is not classified as prime farmland. Christopher-Gefo complex soil occurs at 0 to 5 percent slopes, is found at elevations of 6,220-6,410 feet, has g...
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I attempted to delineate the Upper Truckee River Watershed using Google MyMaps, see Figure 1, below. Figure 2 shows the actual watershed delineation. As you can see, I  mapped too far out on the west and north-east sides in my attempt to delineate.    The area for my delineation was 65.8 mi 2 compared to the actual area which is 56.5 mi 2 . The highest point of the Upper Truckee River Watershed is at Red Lake Peak, approximately 10,063 ft above sea level. The lowest point is at lake level, approximately 6,222 ft, for a change in altitude of 3,841 ft. The Upper Truckee River is the main channel supporting the watershed with smaller tributaries such as Grass Lake Creek, Angora Creek, Echo Creek, and Big Meadow Creek draining into the river. South Lake Tahoe is the main city located and supported by the watershed, and has a population or approximately 22,535, as well as a booming tourist industry, with approximately 15 million visitors annually. Figure 1 Self Delineation Fi...
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