Stephen A. Hall, Ph.D Red Rock Geological Enterprises

Welcome to Red Rock Geological Enterprises!

Red Rock Geological Enterprises is my consulting firm begun after 25 years of university teaching in Texas. Upon moving to Santa Fe I started a new career working with archaeologists in New Mexico and adjacent states on the geology of prehistoric sites.

My approach to dealing with prehistory could be called landscape-evolution analysis. The landscape is a mix of bedrock, landforms, soils, climate, plants, animals, and people in a single package. Looking at sites to resolve the relationships of the above requires a firm stratigraphy-sedimentology-paleoecology, and a tight geochronology of the geologic-archaeological context.

The physical landscape at any one interval of time is characterized by erosion, deposition, or stability. The interaction of past climate and vegetation plays a pivotal role in determining the condition of the physical landscape. The location, formation, and preservation of archaeological sites are in turn largely determined by the big picture of landscape evolution.

I work with archaeologists on the geomorphology of specific sites as well as larger areas where many sites are being investigated. I put sites into the context of regional patterns of landform development and past environments.

Please contact me at 505-466-7755 or


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