I am having trouble creating a line feature of the US and Mexico border. I have two polygon features of the two countries. I am using US census county polygon and Mexico's municipios (municipal) polygon. I have also tried using a polygon of Mexico's states instead, as it is less complex than the municipios. Unfortunately the MX States shapefile doesn't match the US county border exactly. I have tried the intersect tool, but I just end up with an empty line file. I have also tried drawing a new line shapefile, but that was a total fail. In the end I would just like to have a line shapefile of the US/MX border. I would appreciate any and all instruction on how to do this. Thank you all.