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and other indicators of growing sociopolitical complexity mark the Upper Archaic Period(3,000-1,500 BP). <br /> Exchange systems become more complex and formalized. Evidence of regular, sustained trade between groups <br /> was seen for the fust time. <br /> Several technological and social changes characterized the Emergent Period(1,500-150 BP).The bow and arrow _ <br /> were introduced,ultimately replacing the dart and atlat.Territorial boundaries between groups became well <br /> established. It became increasingly common that distinctions in an individual's social status could be linked to <br /> acquired wealth. Exchange of goods between groups became more regular with more goods,including raw <br /> materials,entering into the exchange networks. <br /> ETHNOGRAPHIC CONTEXT <br /> Ethnographically,the Northern Valley Yokuts occupied lands on either side of the San Joaquin River from the <br /> Sacramento—San Joaquin Delta to south of Mendota,which includes the project site and vicinity.The Diablo range <br /> probably marked the Yokuts'western territorial boundary,and the eastern boundary ran along the Sierra foothills — <br /> (Wallace 1978).The late prehistoric Yokuts may have been the largest ethnic group in pre-contact California and <br /> were organized into various"triblets"Each triblet,which served as the basic political unit among the Yokuts, <br /> occupied a defined area and consisted of a few hundred to several thousand individuals(Moratto 1984). — <br /> Euro-American contact with the Northem Valley Yokuts began with in the late 1700s to early 1800s.Many Yokuts <br /> were lured or captured by missionaries and scattered among the various missions,although some escaped and _ <br /> returned to the Valley.Raids on Spanish(and later Mexican)livestock herds became commonplace in the early 19th <br /> century,leading to sometimes devastating retaliation by the settlers.Additional pressures on Yokut populations <br /> occurred with the malaria epidemic of 1833 that killed thousands,decimating the population.The influx of <br /> Europeans during the gold rush era finther reduced the population because of disease and violent relations with the <br /> miners.Though no gold was found in the Yokuts territory,would-be miners passing through on their way to the <br /> Mother Lode diggings caused a certain amount of upheaval.By the latter decades of the 1800s,former miners and <br /> newly arrived farmers settled the San Joaquin Valley,My displacing the native Yokuts(Wallace 1978). <br /> HISTORIC CONTEXT <br /> The first known Europeans to settle in the San Joaquin County(County)area were trappers with the Hudson's <br /> Bay Company. These trappers were mainly of French descent and settled in the area still known today as French <br /> Camp. In 1829,the Spanish government attempted to find a new location for a mission in the area. However,they <br /> were driven out of the area and defeated in a battle on the banks of the Stanislaus River by Native Americans <br /> under Estanisloa,Chief of the Si-yak-um-na(Cook 1975).This was the last major Spanish attempt at further <br /> settling the region. <br /> A prominent and successful European settler in the region was Captain C.M.Weber,a German immigrant who <br /> left his native land in 1836.Weber made his way to Sutter's Fort,where he was employed as overseer and general <br /> assistant to Sutter.Eventually he made a trip to San Jose sometime during 1841,where he struck up a partnership <br /> with Guillermo Gulnac. In 1842,they built and opened a flour mill and made sea biscuits (a form of hard, <br /> unleavened bread).A year later,Gulnac obtained a land grant of 48,000 acres from the Mexican government near <br /> French Camp and raised cattle(Cook 1975). This holding became known as Campo de los Franceses(Beck and — <br /> Haase 1974)and included lands now incorporated into the College Park site. <br /> Farming and the raising of livestock became more intensive in the area through the 1850s and 1860s, and in 1868 <br /> the Central Pacific Railroad Company announced their intentions to build a rail yard in Lathrop to provide access <br /> to the agricultural wealth of the region.The completion of the transcontinental rail line in May 1869 provided <br /> additional impetus for development in the region.Additional economic growth was spurred by the Central Valley _ <br /> Project(CVP), a massive water-transportation system funded by the U.S.government and initiated in 1938.The <br /> CVP pumped water from the Sacramento River into two canals,the Contra Costa Channel and the Delta—Mendota <br /> EDAW College Park at Mountain House Specific Plan III Draft EIR <br /> Cultural Resources 4.6-2 San Joaquin County <br />