Contours (1-Foot) (Feature Service)

1-foot contour lines for eastern and central Massachusetts, from 2021 lidar data. Labels are the lines' elevation in feet.马萨诸塞州东部及中部区域的1英尺等高线，源自2021年激光雷达（LiDAR）数据。该数据集的标签为各等高线对应的海拔高度，单位为英尺。