Pipelines
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资源简介：
The pipelines shapefile was digitized from Ai graphic files, where individual lines were traced from PDFs of individual county maps provided by the National Pipeline Mapping System(NPMS). Due to the sensitive nature of this data, the maps that were made available through NPMS are not precisely accurate and are intended for use at a county or regional scale.
提供机构：
DVRPC-GIS创建时间：
2026-05-31
