Black obsidian, side-notched point fragment. There is an adhering matrix on one side. Portion of edge near break is chipped. M. Christopher 10/30/1998.

Black obsidian, side-notched point that has an adhering matrix along the edge on one side. M. Christopher 10/30/1998.

Black obsidian point with a contracting stem and parallel flaking. 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-] 46 [Collection Name] Bergen [Analysis] Specimen No: 15 [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/brown obsidian, side-notched point fragment. D. Bradley 10-26-98.

Vesicular basalt cobble. 12/01/98 D. Bradley

Black obsidian, leaf-shaped biface. D. Bradley 01/27/99

Black obsidian, corner-notched point; base is broken. D. Bradley 01/12/99

Black obsidian biface fragment. D. Bradley 02/05/99

Black obsidian lanceolate-shaped point that is stemmed and slightly concave at the base. M. Christopher 10/16/1998.

Black obsidian, serrated point with rounded shoulders. There is an adhering matrix on one side. K. Peterson 1/20/98