Leon was raised in the open ranch land of northern New Mexico and developed an affinity for the Southwestern landscape. Stationed in Germany while in the Army, he was able to travel extensively throughout Europe, visiting museums and maintaining sketching journals. In addition, he studied painting techniques of the old masters for two years.
On his return to Colorado, he began to study the intaglio techniques and selling the prints he produced. The layering of coloring in the woodblock process allows him to better capture the atmospheric qualities of the Southwestern landscape that has such a strong meaning for him.