BLM OR County Boundaries Polygon Hub

COB_POLY: This theme shows the jurisdictional and cartographic county areas for Oregon and Washington. The POCA layer is an integrated set of geographic- referencing...COB_POLY：本主题展示了俄勒冈州与华盛顿州的司法管辖县域及制图县域范围。其中POCA图层（POCA）为一套集成的地理参考数据集……