Adobe House Atlas is a map based directory that documents historic adobe and pueblo houses across the United States. The resource catalogs properties by state, era, architectural style, and current status, with a focus on the American Southwest where Spanish and Pueblo building traditions met arid climates. The atlas covers twelve of the most significant documented properties, including the oldest continuously occupied adobe building in the country and the great inhabited Pueblo communities of New Mexico. Coverage extends across five primary states with deeper catalogues, plus five smaller regional records that round out the national inventory. The atlas organizes adobe houses into four building traditions that account for nearly every example in the country. These include the early 20th century Pueblo and Spanish Revival styles, original colonial era adobe from Spanish and Mexican periods, adobe adapted with American milled lumber after 1846, and contemporary earthen building with stabilized and reinforced materials. Each tradition has a field guide explaining how to distinguish them. Notable properties featured include the Palace of the Governors, Taos Pueblo, San Esteban del Rey Mission, Mission San Xavier del Bac, San Francisco de Asis Mission Church, the Alamo, and El Santuario de Chimayo. Typical use cases include researching historic adobe architecture, identifying properties by architectural features such as rounded battered walls, projecting vigas, flat roofs with canales, and single story rooms around a placita. Users can explore the map by scrolling and dragging to find adobe houses in regions including the Monterey Colonial and rancho adobes of California, the Santa Fe and Taos area of New Mexico, Sonoran row houses and presidio adobe in Arizona, San Luis Valley plazas in Colorado, and mining era adobe roadhouses in Nevada. The atlas also provides answers to common questions about adobe construction, including how well maintained houses can last 200 years or more, the importance of protective plaster and water management, seismic considerations for unreinforced versus modern reinforced adobe, and the distinction between adobe bricks and cob construction.