Fire Hydrants 1999

Fire Hydrants captured in 1999. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of MD and VA.1999年采集的消防栓（Fire Hydrants）数据。本数据集关联合同编号NCPC 93-02。本文档阐述了针对华盛顿哥伦比亚特区及周边马里兰州（Maryland，MD）、弗吉尼亚州（Virginia，VA）范围内350幅地图瓦片的平面地图制图方案。