Rivers and Streams

Hydrology line work in Rock County, Wisconsin. The methodology used to digitize the features used numerous datasets as reference and verification of active hydrography within Rock County. The datasets used were: USGS 7.5 Topo Quad Digital Raster Grids, Aerial Photography, Pictometry Oblique and Top-down Orthophotography, Digital Terrain Models, 2 Foot Contour Topography. This data layer is used as the base of the 300' Shoreland Zoning buffer. Only those features that are navigable are used in this analysis.威斯康星州罗克县（Rock County）水文线状要素数据集。本次水文要素数字化采集所采用的技术方法，依托多套数据集作为参考与验证依据，用于罗克县范围内现行水文要素的确认与核验。所用数据集包括：美国地质调查局（USGS）7.5分幅地形图数字栅格格网、航空摄影影像、Pictometry倾斜摄影影像与正射航空摄影影像、数字地形模型、2英尺等高线地形数据。该数据图层将作为300英尺岸带区划缓冲区的基础底图。本次分析仅纳入具备通航功能的水文要素。