The
Natural Hoof is Shaped by
Diet, Movement & Environment

The robust hoof shape needed for today's riding is modeled after the mustang hoof found on horses wandering in hard, rocky areas like Nevada and Arizona.
In the wild, the hoof is worn by horses' constant movement. The edges of the hoof from the toe to the "quarters" (the sides of the hoof wall at the base of the hoof) are shaped by loose soil & rock. These rounded edges deflect rocks & dirt, & enhance traction.
In rocky terrain, the "quarters"; often take on a scoop-shape that accentuates traction, absorbs concussion, allows loose matter to escape to the sides of the hoof as the hoof descends in a weight bearing stage.
On flatter terrain, the hoof adapts as best it can, usually filling in flat with a retained sole and higher bars to provide support.