Exit and Paradise Creek Fluvial Features, 2012

We mapped selected braid plain features at a scale of about 1:2,000. Channel boundaries were mapped as the toes of stream banks because bank tops were less discernible. For simplicity, isolated non-fluvial features such as bedrock or moraines stranded within the braid plain were not delineated separately. Braid plain features were delineated from the 2012 orthophoto and elevation data, and from the 2005 orthophoto for areas along the Resurrection River and along the upstream part of Paradise Creek. The active braid plain was delineated for Exit and Paradise Creeks throughout the study area. For the portion of the Exit Creek braid plain downstream of the prominent moraines dating to the 1800s, we differentiated the active braid plain, encompassing the suite of wetted channels and largely unvegetated intervening bars, from the inactive braid plain, consisting of vegetated, formerly occupied channels and bars still considered accessible by channel migration without substantial bank erosion under current hydrologic processes. For this area, no distinction is made between by braiding and fan building processes. Areas along Exit and Paradise Creeks where freshly mobilized sediment around disturbed vegetation (in the 2012 orthophoto or field observations) suggested a transition from inactive to active braid plain were mapped as transitional braid plain. Features were delineated as polygons.