Southwest Alaska visitor use monitoring areas

The SWAN Visitor Use Monitoring dataset represents visitor use monitoring areas defined by the National Park Service (NPS) Alaska Region for commercial use...SWAN访客使用监控数据集（SWAN Visitor Use Monitoring Dataset）涵盖了由美国国家公园管理局（National Park Service, NPS）阿拉斯加区域划定的商业用途访客使用监控区域……