All Secondary Roads in the Western United States
收藏DataONE2016-10-29 更新2024-06-26 收录
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资源简介：
All secondary roads in the western United States from the 2000 US Census TIGER/line files. Secondary roads are defined as all roadways not classified as an interstate, state highway, or federal highway.
创建时间：
2016-10-29
