GRSM_MILE_MARKERS

This is a vector point file showing mile markers at Great Smoky Mountains National Park (GRSM). Data were collected with GPS and/or aerial photography. Mile markers depict administrative distances on major roads and rivers within the park boundary. Mile markers shown on roads were derived from the Federal Highways Administration Road Inventory Program. To show the location of mile markers at Great Smoky Mountains National Park. The intended use of all data in the park's GIS library is to support diverse park activities including planning, management, maintenance, research, and interpretation. Mile markers are used for reporting purposes for facilities maintenance, as well as depicting locations of unnamed features (e.g. parking lots). Mile markers may not coincide with GPS or odometer information. Mile markers are intended for administrative use only, and should not be used for linear calibration purposes. The corresponding Integration of Resource Management Applications (IRMA) NPS Data Store reference is Great Smoky Mountains National Park Mile Markers.

本数据集为矢量点文件，展示大雾山国家公园（Great Smoky Mountains National Park，GRSM）内的里程标。数据采用全球定位系统（GPS）及/或航空摄影技术采集。里程标用于标示公园管辖边界内主要道路与河道的行政里程。道路上设置的里程标源自美国联邦公路管理局道路清查计划（Federal Highways Administration Road Inventory Program）。本数据集旨在展示大雾山国家公园内里程标的分布位置。该公园地理信息系统（GIS）库内全部数据的预设用途为支撑各类公园运营活动，涵盖规划、管理、维护、研究与解说宣教工作。里程标可用于设施维护的上报工作，同时可标示未命名地物（如停车场）的具体位置。需注意，里程标数值可能与全球定位系统（GPS）读数或车辆里程表示数不一致。里程标仅适用于行政用途，不可用于线性校准工作。对应的资源管理应用集成（Integration of Resource Management Applications，IRMA）国家公园管理局数据存储中心参考条目为：大雾山国家公园里程标。