Obsidian biface fragment, with retouch.

Black obsidian leaf-shaped biface. M. Christopher 10/09/98.

Black obsidian unifacial, double-edged scraper. M. Christopher 10/09/98.

Black obsidian, side-notched point; triangular-shaped with expanding stem. D. Bradley 02/03/99

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

Black obsidian, side-notched point with broken tip. D. Bradley 01/25/99

Black obsidian, stemmed point with round shoulders. D. Bradley 02/10/99

Black obsidian, side-notched point with broken base. There is an adhering matrix on one side. 12/01/98 D. Bradley

Black obsidian, square-shouldered point. Portion of one edge is broken 4.3 cm in length. D. Bradley 01/14/99

Black obsidian biface fragment. 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 McComb Butte. 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-] 30 [Collection Name] Bergen [Analysis] Specimen No: 6 [Source Location] McComb Butte 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.