triangular and black; base gone

Black obsidian biface that is broken on one side. One flake is broken off in the bag. K. Peterson 2/3/99

Black obsidian biface or drill, with broken base. D. Bradley 02/05/99

Only half of the object present. Greengo notes say this object is from "Klickitat, various sites."

Black obsidian side-notched point with a concave base and broken tip. M. Christopher 10/16/1998. Dr. Dennis Jenkins, University of Oregon, sent this specimen to Northwest Research Obsidian Studies Laboratory, Corvalis, OR for analysis (on loan 11/30/98 - 4/9/99). A portion of this specimen was removed for obsidian hydration. The source of raw material was determined to be Cougar Mountain. Northwest Research Obsidian Lab placed a paper tag in the specimen bag with the following information: [Lab Contract #] BO-98-91 [Catalog #1989-57/35-M-] 52 [Collection Name] Bergen [Analysis] Specimen No: 21 [Source Location] Cougar Mountain See also the following report from Northwest Research Obsidian Studies Lab for more detailed analytical data: Skinner, Craig E. and Jennifer J. Thatcher 1998 "X-ray Fluoresence Analysis of Artifact Obsidian from the Bergen Site, Fort Rock Lake Basin, Lake County, Oregon." Northwest Research Obsidian Studies Laboratory, Report 98-91, Corvalis OR. Dr. Jenkins' interpretation of the data was reported at the Northwest Anthropological Conference, 4/8/99 - 4/10/99 in his paper entitled, "Obsidian Characterization and Hydration Results of the Fort Rock Basin Prehistory Project." D. Bradley 04/12/99.

Black obsidian, side-notched point. D. Bradley 02/10/99

Black obsidian, stemmed point with contracting stem (rounded shoulders). D. Bradley 01/12/99

Bifacially flaked lanceolate obsidian tool. Cross-section is triangular and on flat, numbered face there is a patch of dirt or cortex. R.Williams 5/13/98

Irregular shape. Medium-sized point, concave blade margins, broken base and tip.

Black obsidian, triangular biface. 11/02/98 D. Bradley.