Located in the Black Hills of South Dakota, Tepee Canyon is considered by many to be the "source" of the elusive (and valuable) Fairburn Agate. Brown chert nodules inside of a layer of unassuming tan limestone can explode into colorful jasper and quartz nodules, filled with colorful layers and even amethyst crystals! These photos capture tepee canyon agates with never-before-seen detail, showing intricate banding, platelets, crystals and more . Each month, flip to a new larger-than-life image of an agate and transport yourself into the wonderful world of super macro photography.