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South Lowland Photos <br /> May 29, 2014 <br /> Mining Limit <br /> (at section line) <br /> Y <br /> Photo 7: Upper main channel. Area affected is outlined in red. <br /> , <br /> r , <br /> Photo 8: Upper main channel. End of the mining area was just beyond the dense grove of <br /> young cottonwoods growing in the stream channel. Sand encroachment is coming from <br /> migration of sand downstream from the channel and adjacent lands up to about 2 miles (and <br /> maybe more) upstream from this location. Heavy stream flows after large thunderstorms <br /> cause the migration. However, vegetation in the channel continues to develop, thanks to the <br /> removal of grazing from the riparian corridor. <br />