Data originated with the MnDOT basemap stream traces. The data are fully integrated with the DNR 24K Lakes layer in the sense that overland streams terminate at lake and river shorelines. Identification and coding of officially desiginated trout streams in Minnesota. To serve as the basis for a master stream-reach identification scheme. Users can expect a high rate of attribute accuracy, probably in excess of 98 percent correctness.
All lines intersect where intended.
Trout data are thematically incomplete in the current data set. Trout flag values of 1 indicate the presence of designated trout streams. Users of the data for trout related applications must rely on visual analysis to identify the full extent of watercourses protected under trout statutes. Horizontal Positional Accuracy Horizontal positional accuracy is highly variable. Hydrographic features were then isolated from the data set based on line codes and subjected to a series of automated processing steps as individual thematic layers in an attempt to create polygon topology where appropriate, and to create intersections in linework within close tolerances.