1. A method, comprising: capturing, with a first image capture device mounted on a mobile platform configured for movement along a railway comprising one or more rails, a series of position reference images as the mobile platform travels along the railway; identifying, in at least one position reference image, a visual target positioned proximate to the railway; determining a distance from the mobile platform to the visual target; calculating, at a computer system, a location of the mobile platform on the railway, based at least in part on the determined distance from the mobile platform to the visual target; capturing, with a second one or more image capture devices, one or more railway images of the one or more rails; performing, at the computer system, photogrammetric analysis on at least one of the one or more rail images to identify a rail configuration of the railway; associating the rail configuration with the location of the mobile platform on the railway; and storing, in a data store, a data record comprising data about the rail configuration and the associated location of the mobile platform.