What question did this study set out to answer?

The research aims to analyze pollen from the Fillmore Severson site to understand past human occupations.

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February 28, 2026Open Access

Pollen Analysis for the Fillmore Seaverson Site (48cr11356), Sweetwater County, Wyoming

Key Points

The research aims to analyze pollen from the Fillmore Severson site to understand past human occupations.
Conducted radiocarbon analysis on charcoal from thermal features.
Collected soil samples from Cultural Stratum II and underlying features.
Performed pollen analysis on the collected soil samples.
Radiocarbon dating indicates occupations from the Opal phase of the Archaic period.
Intensive site use is estimated to have occurred around 5300–5200 years B.P.
Pollen analysis provides insights into the environmental context of human activities.

Abstract

Site 48CR11356 is located west of the bank of Fillmore Creek and approximately 350 feet southwest of the earthen dike of Seaverson Reservoir. AMS Radiocarbon analysis on charcoal recovered from eight of the thermal features indicates multiple occupations spanning the Opal phase of the Archaic period (5690 ±30 years B.P. 4070 ±30 years B.P.), with more intensive use from approximately 5300–5200 years B.P. Soil samples representing Cultural Stratum II and the base of a feature beneath a piece of burned sandstone were submitted for pollen analysis.

Pollen Analysis for the Fillmore Seaverson Site (48cr11356), Sweetwater County, Wyoming

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