I can find five foot contours for most areas, where can I find 1 foot or 2 foot contour lines?
Prefer ArcGIS or AutoCAD but will take anything I can get.
I've got contour line vector tiles as well as gpkg vector features ready for offline mapping. Plus can generate contours of any interval we have Aster 2 GDEM, SRTM and USGS 3DEP NED as elevation tiles for rapid Geo processing. Also have quantized mesh terrain tiles and elevation tiles PNG. MAPS at TechMaven.net