G.Mapping Method <br /> <br />Sample plot locations and wetland boundaries nodes were recorded using a Trimble map grade GPS <br />with sub-meter accuracy (Table 1). OHW and topographic features were surveyed using RTK GPS with <br />accuracy of 0.1 feet. OHW nodes were recorded throughout the study area and were connected using <br />GIS. Lines between the nodes were adjusted using high quality aerial imagery, LiDAR, and <br />topographic survey data from the RTK. <br />Table 1. Post-processing accuracy of sample plots taken with the Trimble GPS. <br />9ƭƷźƒğƷĻ ğĭĭǒƩğĭźĻƭ <br />wğƓŭĻtĻƩĭĻƓƷğŭĻ <br />0-5 cm- <br />5-15 cm1.04% <br />15-30 cm20.39% <br />30-50 cm17.50% <br />0.5-1 m35.46% <br />1-2 m24.45% <br />2-5 m1.16% <br />>5 m- <br /> <br />H.Additional Information <br /> <br />FISH USE <br />The project area is within the Upper Willamette River (UWR) management unit for the Oregon <br />Department of Fish and Wildlife (ODFW). The Willamette River within the project area vicinity <br />supports a wide variety of native and nonnative fish species (Table 2), and is designated critical habitat <br />for Upper Willamette River Chinook Salmon, which is listed as threatened under the Endangered <br />Species Act. Non-listed hatchery summer steelhead are also present in the area. <br />9 <br />