This entry contains two files. The first file, "Hance_WFSR Flasher locations.xlxs", contains information describing the location of installed landmark 'flashers' consisting of 2" square aluminum metal tags. Each tag was inscribed with a number to aid field personnel in the identification of landmark location within the West Fork Smith River watershed in southern coastal Oregon. These landmarks were used to calculate stream distances between points in the watershed, including distances between tagging locations and detection events for tagged fish. A second file, named "Hance_fish_detection_data1.xlxs" contains information on the detection of tagged fish within the West Fork Smith River stream network. The file includes both the location where the fish were tagged and where they were subsequently detected. Together with the information in the WFSR flasher location dataset, these data allow estimation of the minimum distances and directions moved by juvenile coho salmon during the fall transition period. A map locator is provided in Figure 1 in the accompanying manuscript: Dalton J. Hance, Lisa M. Ganio, Kelly M. Burnett & Joseph L. Ebersole (2016) Basin-Scale Variation in the Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon, Transactions of the American Fisheries Society, 145:5, 1018-1034, DOI: 10.1080/00028487.2016.1194892". This dataset is associated with the following publication: Hance, D.J., L.M. Ganio, K.M. Burnett, and J. Ebersole. Basin-Scale Variation in the Spatial Pattern of Fall Movement of Juvenile Coho Salmon in the West Fork Smith River, Oregon. TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY. American Fisheries Society, Bethesda, MD, USA, 5(145): 1018-1034, (2016).