This area had been burned at least a decade before it was recorded in 2008. The bead cluster is in a spatially restricted portion of a larger site (almost all bead documented are in the area marked by pin flags in the image above). Bead diameter (mean = 2.71 mm) suggests an occupation in the mid to late 1830s using equation from von Wedell (2011).
von Wedell, Christopher R. (2011). Methods of dating glass beads from protohistoric sites in the South Platte River Basin, Colorado. MA Anthropology, Colorado State University. MA Thesis Anthropology, Fort Collins.