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3D photo technique documents rock art sites locally

*Feature Photo: Alicia Alfaro helped last summer with a photogrammetry project conducted by BLM at the Castle Gardens Rock Art site in Fremont County. (BLM / Pitchengine Communities) * (Hudson, Wyo.) - Rock Art Sites in Fremont and Hot Springs counties have been photographed in a new way, according to BLM Worland Office Archaeologist & Paleontology Coordinator, Marit Bovee. Bovee made a presentation to the Fremont County Archaeological Society this past week on Photogrammetry and Rock Art Monitoring. As explained, Photogrammetry is the method of taking two –dimensional (2D) photographs and creating a three-dimensional (3D) image. It is a way of obtaining both a detailed image and mathematical measurements of the object being captured. Recently the BLM's Worland Field Office has integrated this technique into a monitoring plan for several rock art sites. The sites are within an area impacted by development and, besides the potential for increased vandalism, there was concern about cumulative impacts to the rock art from dust abrasion/accumulation and vibration. According to Bovee, the ultimate goal and hope of the project is to be able to quantifiably determine if impacts are occurring and to measure those impacts. [image: Inline image 1] *A rock art site in Hot Springs County is readied to be photographed. (BLM / Pitchengine Communities) * #county10 #springcity #news