I want to calculate river miles. There are point locations that I need to calculate their mile posting as well. I have a Line Feature of a river centerline along with point locations. The easy way to achieve this is the measure tool but after reading about linear referencing tools to near tool I tried it all but with no progress. I tried calibrate route tool and used that and Locate features along route tool but that table was empty. If you are going ot respond answer in layman's terms and don't be too technical. Just lay it out in steps.