I am using the latest version of ArcMap for desktop. I have a shapefile which is contour lines. I have two shapefiles for adjacent areas of a map. One of the shapefiles has double the number of contour lines as the other shapefile. I understand that I can display a reduced number of contour lines by using a definition query, but I would like the actual file to contain fewer lines and be more similar to the other shapefile. Any advice on how to do this is greatly appreciated.
The shapefile I want to reduce contains 673,835 lines in the attribute table and is 125 MB