Double Adobe, in southern Arizona’s Whitewater Draw, became important to archaeology after Byron Cummings led investigations there in 1926, joined by student Emil Haury. Early interest focused on a mammoth skull found in apparent association with stone artifacts, though later study showed stream action had mixed some of the remains and tools. Even so, excavations yielded significant Ice Age and early post-Ice Age evidence, including animal bones, projectile points, fire-cracked rock, and small grinding stones. Those finds helped illuminate changing lifeways as the climate grew warmer and drier and contributed to the definition of the Cochise culture, making the wider area important for understanding southern Arizona’s prehistoric environment and early cultures.