Durham Region Contours 2021
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资源简介：
A dataset that contains elevation contours in polyline ZM format for the entirety of Durham Region. This information has been produced by First Base Solutions Inc. The DESC_ field indicates whether a contour is a major (CONTOUR_INDEX) or minor (CONTOUR_INTER). The Elevation field indicates the contour's value in metres(m) above the sea level reference datum.
创建时间：
2023-06-05
