Recent archaeological research in the Mt. Trumbull region of northwestern Arizona has confirmed the presence of an unusually large number and variety of Virgin Branch Puebloan sites. Subsurface testing of a sample of these sites provides limited chronological controls using both radiocarbon and optically stimulated luminescence (OSL) dates on the occupations. Intensive survey of a large parcel of land has quintupled the number of sites known. Field mapping of the abundant structural sites in the area, coupled with random artifact surface collections, indicates rough ages for many of these sites. The unique abiotic characteristics of the Mt. Trumbull area allowed widespread settlement of the area perhaps as early as Basketmaker III times, followed by significant aggregation into larger C- and L- shaped pueblos towards the end of the Pueblo II and the early Pueblo III periods.

中文翻译：

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史前山内的人口变化。亚利桑那州特伦布尔地区

最近在山的考古研究。亚利桑那州西北部的特伦布尔地区已确认存在数量众多且种类繁多的维珍分支普韦布洛遗址。对这些场所的样品进行地下测试只能在职业上同时使用放射性碳和光学激发发光（OSL）日期来提供有限的时序控制。对大片土地的密集调查使已知地点的数量增加了五倍。该地区丰富的结构性场地的野外测绘，再加上随机的人工制品表面收集，表明其中许多场地年龄粗糙。山的独特的非生物特征。特伦布尔地区可能使该地区广泛定居，也许最早在上篮制造者三世时期，