Datagov Opendata Platform

For the 114-year slope range map (Water Conservation Act, excluding the six municipalities) shp download file, it includes SLOPELAND (slope range), COUNTY (county code), COUNTYNAME (county name), P_DATE (date of announcement of inclusion), P_DOCNO (announcement document number of inclusion), P_AREA (area of inclusion), D_CODE (inclusion principle), A_DATE (date of announcement of exclusion), A_DOCNO (announcement document number of exclusion), A_AREA (area of exclusion), AUTHORITY (authority code), and AUTHO_NAME (authority name) fields.