The Create Steepest Path interactive tool on the 3D Analyst toolbar should be made into a geoprocessing tool so batch processing can be used.

Idea created by erice-esristaff Employee on Mar 31, 2010
    The 3d toolbar option only allows for single calculations, only graphic outputs, and cannot be used in model builder.  In my case I have points representing medium/large boulders and will be using explosives on a project site.  Should a boulder start to roll I need to know where it will go, assuming it will follow the steepest path.  I have many points I need to process and doing it one by one interactively is too time consuming.