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• <br /> <br />• <br />colors ranging from 10YR 2/1 to 10YR 3/2. Hydrology was provided by lateral saturation from stream <br />flow. <br />These headwater streamside wetlands were mapped upgradient until they ended at their water <br />source. These water sources were often a series of old beaver ponds and/or seeps and springs. <br />Occasionally, these wetlands ended in a concave basin where overland flow no longer concentrated <br />sufficiently to saturate the ground for a long enough period to preclude upland vegetation. <br />Streamside wetlands (including "expanded" streamside wetlands) that were typically found lower in <br />the watershed were subjected to the more formal "recorded" checkpoints that were placed at systematic <br />intervals of 0.1 miles. The upper mile of stream reach below the beginning point for recorded <br />checkpoints on Collom Gulch exhibited an average wetland width of 4 feet. The channel was generally <br />trapezoidal in shape and had been excised between 5 and 10 feet into the valley bottom. Below this <br />reach for a distance of nearly 3/4 mile, the channel largely disappeared into "expanded" streamside <br />wetlands as well as larger wetlands 2 and 3 (8.13 acres). Over the next 1/2 mile, the stream reach was <br />variable between more narrow "expanded" streamside wetlands, and steep "V" shaped actively eroding <br />channels with only a foot of wetland. The final 1.5 miles of Collom Gulch (until Co. Rd. 32 was <br />encountered) was expanded streamside wetlands 10 to 40 feet in width along a very deeply incised <br />channel. Dominant vegetation along this "recorded" checkpoint reach of Collom Gulch included: Carex <br />aquati/is, Agrostis alba, Carex nebracensis, Cirsium arvense, and Acer negundo, as well as several <br />additional sub-dominant taxa. <br />The upper mile of stream reach on the West Fork of Jubb Creek below the beginning point (Artesian <br />Well) exhibited variable wetland widths from 0 to 2 feet up to an expanded streamside wetland of 40 feet <br />in width. The channel, where it existed, was generally "V" shaped and had been excised between 0 and <br />6 feet into the valley bottom. Immediately below this reach was wetland No. 5 (4.9 acres) that also <br />exhibited one of the highest quality stock tanks. in the study area (from a wildlife habitat perspective). <br />This stock tank exhibited a reasonably sized area of open water, emergent vegetation (Schoenopiectus <br />iacustris) along the wide dam, and extensive wetland meadow vegetation along the perimeter that <br />merged with wetland No. 5. <br />Over the next 1000 feet of stream reach (immediately below Wetland No. 5), the wetland / stream <br />system becomes rather complex. Through this area, are intermittent flat channels that exhibit wetland <br />vegetation, interspersed with sections where no discernible channels are present. It is presumed that <br />CIEUDAIlttCIZZIEKAWOCUIl9ES, INC. Page 42 2005 Collom Vegetation Survey