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Heritage, Volume 2, Issue 3 (September 2019)
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Cover Story (view full-size image) Located in Northeastern Arizona, USA, the Petrified Forest National Park (PEFO) presents a unique [...] Read more. Located in Northeastern Arizona, USA, the Petrified Forest National Park (PEFO) presents a unique story of both geologic and human history. A multidisciplinary team employed the Rock Art Stability Index (RASI) to assess stone stability and deterioration of rock art sites throughout the park. Used for more than a decade, RASI uses a rank-based system to assess over three-dozen rock decay parameters, resulting in an overall condition analysis for each assessed rock art panel. The findings can be grouped by site location to gain a clearer understanding of overall decay processes and landscape change. This study highlights RASI, its use as a low-cost, non-invasive, rapid field assessment technique, and assesses the geomorphic stability of five major petroglyph sites in the Petrified Forest National Park. View this paper.