Figure 2: The two types of topographic surveys of the Sandy River near the site of Marmot Dam are shown overlain on a 2008 (post-removal) aerial photograph. The blue points are fixed cross sectional surveys, which have been repeated annually. The orange points are event-based topographic surveys that map out significant features such as water's edge, slope breaks, etc…; the dark orange lines connect points that trace common features. The black line is the former location of the dam.
Image 18304 is a 1791 by 3431 pixel WebP
Uploaded:
Dec22 09
