Virginia Tech, Extension Service2019-11-192019-11-191939-07-26http://hdl.handle.net/10919/95655View of rank growth of vegetation above concrete check dam in channel.positive, 3.5 x 5 in.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10Agricultural EngineeringWatershedWater RunoffSoil and Water ConservationProject 10 Image - VA Pittsylvania County - 1939-07-26VA-RS-41PhotographBiological Systems Engineering, Virginia Tech