20260820 09510800 1.0 TRUE Impervious polygons derived from circa 2021/2022 high-resolution remotely sensed data. Object Based Image Analysis (OBIA) techniques were employed to automatically extract building, roads, other paved, and railroads polygons from a combination of 2016 LiDAR and 2021/2022 Orthoimagery. The resultant Impervious polygons were then subjected to a manual review at a scale of 1:2500. A further processing task was conducted to detect rocky outcrops on the tops of mountains, which are classified as Bare Soil in this dataset. Impervious surfaces raster was developed as part of the Vermont High-Resolution Land Cover mapping project. VCGI, UVM SAL None IMG_VCGI_IMPERVSRFCS2022_WM_NOCACHE_v1