Dr. Hard has a variety of research interests. His recent work has focused on the sites of Cerro Juanaqueña and Cerros Trinchera. Additionally, Dr. Hard has been working on the spread of agriculture and maize in the American Southwest and Chihuahua, Mexico.

The following is a list of Dr. Hard’s topical interests:

• Evolution of farming economies and sedentism
• Isotopic determination of human diet
• Regional analysis
• Hunter-gatherer archaeology
• Cultural ecology, human evolutionary ecology
• Ethnoarchaeology
• Archaeology of Northwest Mexico, American Southwest and Texas
• Archaeology of the Jornada Mogollon region
• Archaeological method and theory
• Ground stone tools
• Ethnography and ethnoarchaeology of the Tarahumara Indians of Chihuahua, Mexico