Laserfiche WebLink
4.1.3.3 Pueblo I Period <br />The Pueblo I period (AD 750-900) is well represented in all of the Southern Colorado River Basin <br />drainage units, except the Ute Drainage Unit. These sites are generally characterized by deep, single - <br />chambered pitstructures with contiguous arching sets of jacal rooms placed to the north. Sets of upright <br />slabs are ofeeten found on the surface of these sites and represent the footers for the jacal structures. <br />Room suites typically consist of a front habitation room facing the open plaza with one to three attached <br />back rooms used for storage. Ceramic manufacturing includes neck -banded graywares and white slipped <br />decorated pottery, with some redwares. Typical pottery types in the western drainages include Moccasin <br />Gray, Chapin Gray, Piedra B/W, and Bluff B/R. The period increasingly appears to be one of rapid <br />aggregation and development. Many of the village communities of this period rival the size and <br />complexity of the more infamous masonry Pueblo III communities (Wilshusen 1999b:224-226). <br />However, after AD 875 these large communities in the western drainages begin to fragment and it appears <br />that populations dispersed and/or moved southward into New Mexico and perhaps eastward into the <br />Upper San Juan -Piedra Drainage Unit in response to environmental changes and ensuing cultural stresses. <br />In the LPDU, 24.4 percent of identifiable components date to the Pueblo I period. No Pueblo I period <br />components were identified during this survey. <br />Whalen (198 1) suggests the origin of the roomblock, or pueblo, during the Pueblo I period is an adaptive <br />reorientation from a hunting and gathering subsistence system with some food production to a system <br />primarily sustained by food production. As the intensification of agriculture proceeds and becomes more <br />labor intensive, the need for larger residential groups and permanent habitation sites rises in response to a <br />complex scheduling of processing, storage, and preparation activities required to maintain the cultural <br />system. In this view, the pueblo or roomblock is interpreted to represent an architectural solution to the <br />social consequences of agricultural intensification. <br />4.1.3.4 Pueblo 11 Period <br />The early Pueblo II (PII) period (AD 950-1050) is poorly understood and the population evidently much <br />smaller than occurs during the peak of the PI period. Sites dating to early PII are few in number and have <br />not been subject to extensive professional excavations, as have the more ubiquitous and formidable PI and <br />late PII-PIII period sites (Lipe and Varien 1999a: 253). The habitation sites tend to be unit pueblos with a <br />kiva and room suite usually representing only one to two households. It appears that by the AD 1OOOs, <br />the region is beginning to be re -populated by former inhabitants and architectural units become more <br />diverse and complex later in the era. Similar to BMIII sites, the PII habitations are placed in proximity to <br />loess soils of mesa tops in middle elevation settings. Early Pueblo II sites are generally recognized by the <br />appearance of Mancos Corrugated, Cortez B/W, and Deadmans B/R pottery and tend to use composite <br />architectural techniques involving jacal with some masonry. By the late Pueblo II period (AD 1050- <br />1150), horizontal -laid masonry architecture prevails and larger villages appear in addition to hamlets. <br />Pottery types in the western drainages during the late Pueblo 1I include Dolores Corrugated and Mancos <br />B/W, with decorated wares now utilizing organic instead of mineral paints. Decorated wares become <br />more elaborate with better line execution and tradewares appear more frequently. By the late AD 1OOOs <br />to early 11OOs, Chaco -style great houses appear amidst increasingly dense local communities, and some <br />of the great houses are continuously occupied into the early PIII period. By the end of the late Pueblo II <br />period, community growth stabilizes, while depopulation of the eastern drainage systems appears <br />complete. In the LPDU, the PII period sees a contraction in population (13.6% of identifiable <br />An Intensive CRI for GCC Energy's Proposed Groundwater Monitoring Wells <br />on State and Private Lands in La Plata County, CO <br />SEAS 16-098 October 2016 <br />10 <br />