Casa Grande Ruin

The upper opening in the eastern wall of the eastern room was apparently capped with a single lintel composed of five sticks 4 to 6 inches in diameter laid level on the top of a course of masonry. The bottom of the opening is filled either with washed-down material or with the remains of a block such as that previously described. This opening is the most irregular one in the building, the top being nearly 4 inches nar