Chris Makes - A Huge Mountain Mosaic - Part 1 - The Frame

This is part 1 of a 4 foot by 8 foot mountain mosaic to fill a very large wall in our house. Specifically, I make the frame which is constructed of 1.5 inch angle iron and treated with blackener. Usually, the blackener is wiped off as soon as the steel is black, but I let it dry for 24 hours to give a deep rusting/aging appearance. Part 2 will consist of making the mosaic to go in the frame.