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Site 24DW0560 is a buried lithic scatter or temporary camp located in Dawson County, Montana, approximately 10.5 km west of the town of Lindsay. Twenty-one samples were submitted for a variety of analyses to better understand resource use among prehistoric huntergatherer populations. Eight lithic samples were submitted for protein analysis. Of the seven rock and sediment samples collected from fire-cracked rock (FCR) features, three were submitted for FTIR analysis, one for macrofloral, one for macrofloral and protein control, and two for macrofloral and AMS age determination. In addition, one feature-fill sample was submitted for macrofloral analysis and as a protein control, two FCR samples were submitted for FTIR analysis, and three uncharred bone samples were submitted for AMS age determination on collagen.

One sediment sample from a single-feature, earth oven site (the Fort Nugent Road site) was submitted for flotation and macrofloral analysis. This site is located in Oak Harbor, Whidbey Island, Island County, Washington in the Salish (S’Kllam) cultural area.

The Ski Lake Site is located in the southern Teton Range, Teton County, Wyoming. Nine charcoal samples and twelve bulk sediment samples excavated from two paleoseismic trenches at this site were submitted for analysis. The goal of these analyses was to isolate and identify charcoal for possible radiocarbon dating.

Earth Mounds 33 and 34 are located in the Wathayn locality on the Weipa Peninsula of northern Cape York in Queensland, Australia. Evidence suggests that occupation of the earth mounds at Wathayn began after 2000 BP, with the height of occupation occurring between 500 and 100 BP. Use of the earth mounds on the Weipa Peninsula continued well after European settlement, with evidence for Aboriginal adoption of new technologies suggestive of occupation into the modern era (Stevenson et al. 2015:28). The Wathayn traditional owners continue to use the same cooking methods as those associated with the earth mounds (Foghlú 2017:62). The appearance and gradual predominance of earth mounds on the landscape could signal new diets adopted in the mid-Holocene (Robert Jones, personal communication, 18 June 2019; Foghlú 2017:66). Therefore, pollen, phytolith, and starch analyses of sediment from Earth Mounds 33 and 34 at Wathayn were sought to investigate whether or not components of diet could be detected, and, through the resultant data, specific questions about changing environment, demographics, and subsistence could be answered.

Sites 24ME163 and 24ME1105 are lithic scatters located along Sheep Creek in the Little Belt Mountains of the Northern Rocky Mountains, Meagher County, Montana. Recent excavations at the sites discovered hearth features at both sites and numerous fire-cracked rock (FCR) at Site 24ME163 (Lynn Peterson, personal communication, July 23, 2019). Hearth feature fill recovered at Site 24ME163 was submitted for macrofloral analysis and AMS radiocarbon age determination. Charcoal samples recovered from a hearth at Site 24ME1105 were submitted for identification and AMS radiocarbon age determination.

The Santa Barbara Presidio site (CA-SBA-133) is a 19th Century Spanish/Mexican Period site located in Santa Barbara, California. Two bulk sediment samples excavated from a trash pit at the fort were submitted for flotation and macrofloral analysis. The goal of the project is to better understand the trading relationship between the presidio soldiers and the local Chumash tribe.

A hearth feature excavated at Site 27-GR-236 is located along the Pemigewassat River near the town of Plymouth in Grafton County, New Hampshire. Artifacts observed in association with the hearth suggest affiliation with Early Woodland cultures (Mark Doperalski, personal communication, August 26, 2019). Charcoal collected from the feature was submitted for AMS radiocarbon age determination to assess whether the hearth is indeed prehistoric and what species were used in the hearth.

CA-SHA-1991 (the Tanya Site) is located along Olney Creek in the Sacramento Valley of Shasta County, California. The local environment is primarily oak woodland interspersed with areas of manzanita chaparral. This site is believed to be a late prehistoric period occupation associated with the Wintu tribe. One liter of sediment was collected in 1996 and is associated with the floor of a large, circular dance or assembly house. This sample was sent to PaleoResearch Institute for flotation and macrofloral analysis of seeds and charcoal.

Elk Park is located in Jefferson County, Montana, to the southwest of Helena and northeast of Butte. One bulk sediment sample, extracted from a small pond, approximately 60 cm above the Glacier Peak eruption ash, was submitted for flotation and charcoal recovery and analysis aimed toward identifying materials appropriate for AMS dating.