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Ice patches and the alpine are important elements of the sociocultural landscape of the Greater Yellowstone Area, and they transcend the jurisdictional boundaries that divide the lands on which they occur. The ice patch record complements traditional sources of archaeological knowledge through the addition of well-dated organic artifacts, such as shafts from hunting tools, recovered in a readily recognizable context. This paper examines the types of wood used in the manufacture of hunting implements recovered at Greater Yellowstone Area ice patches through the analysis of nine unique wooden shafts and shaft fragments from five sites. Five shafts are birch (Betulaspp.), two are willow (Salixspp.), one is fir (Abiessp.), and one is pine (Pinussp.). The shafts included in this analysis range in age from 9230 ± 25 B.P. to 215 ± 20 B.P. Diagnostic Oxbow and Pelican Lake chipped stone projectile points recovered in association with ice patches provide additional temporal resolution regarding use of these features. One of the four sites that yielded wooden shafts contains a record of bighorn sheep (Ovis canadensis) hunting between 3885 ± 25 B.P. and 879 ± 23 B.P.

Melting and retreating glaciers and ice patches (aniuvat) have revealed frozen archaeological remains on several continents, including North America. Artifacts from these sites provide information about high-latitude and high-altitude human adaptations and unique insights into prehistoric material culture. A Geographic Information System (GIS) model, “Modeling Archaeological Potential of Ice and Snow,” or MAPIS, is being developed to focus aerial reconnaissance and pedestrian survey for archaeological and paleontological site discovery over vast areas containing glaciers and ice patches. Two field surveys in Alaska's Wrangell-St. Elias National Park and Preserve refined the MAPIS model and documented historic and prehistoric artifacts on the surface of recently melted glaciers and aniuvat. Because thawed and exposed organic artifacts decompose or are destroyed soon after exposure, there is an urgent need to locate and preserve them before they are lost forever.