Harold Joe Waldrum's paintings of New Mexico’s adobe churches and moradas are considered his signature pieces. Taking what he learned from the Window series, Waldrum added organic form and structure to his work, mostly keeping to the square format of his Polaroid studies.
As the time he was photographing them, a few of the churches and moradas were in a state of collapse. Some dated back to the 17th century and needed a great deal of renovation. Waldrum founded the El Valle Foundation to raise consciousness and funds for the most endangered.