Accession Number:

ADA164569

Title:

Archaeological Investigations at Site 45-DO-282, Chief Joseph Dam Project, Washington

Descriptive Note:

Final rept. Aug 1978-Oct 1984

Corporate Author:

WASHINGTON UNIV SEATTLE OFFICE OF PUBLIC ARCHAEOLOGY

Report Date:

1984-01-01

Pagination or Media Count:

153.0

Abstract:

Site 45-DO-282 is on the south bank of the Columbia River River Mile 556 near the Okanogan Highland - Columbia Plateau boundary in an Upper Sonoran life zone. The University of Washington excavated 186.1 cu m of site volume in 1979 for the U.S. Army Corps of Engineers, Seattle District, as part of a mitigtion program associated with adding 10 ft to the pool level behind Chief Joseph Dam. Systematic aligned random sampling with 1 x 1 x 0.2-m units of record in 1 x 2 or 2 x 2-m cells disclosed one historic and four prehistoric occupations on an alluvial fan built onto an early river terrace, interbedded with later overbank and aeolian sediments. There are no radiocarbon dates, but projectile points indicate the earliest occupation is early to mid-Kartar Phase. The second, more intensive occupation probably occurred 6,000 to 5,000 years ago. The third and fourth occupations in the late Kartar Phase took place about 5,000 to 4,000 years ago. Occupation character shows no change in 2,500 years all occupations are lithic scatters, with blade and microblade technology and chipping stations. Shelters, earth ovens, hearths, and bone concentrations are absent. Environmental stability is indicated by soil formation after 4,000 years ago. The historic occupation is an early 20th century homestead. Author

Subject Categories:

  • Humanities and History

Distribution Statement:

APPROVED FOR PUBLIC RELEASE