Black obsidia biface. Shaped somewhat like a Plateau Pentagonal knife. D. Bradley 10-26-98.

Black obsidian stemmed point with bifurcate base and broken tip. White matrix adhering to one face. K. Peterson 10-16-98

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 Silver Lake/Sycan Marsh. 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-] 28 [Collection Name] Bergen [Analysis] Specimen No: 4 [Source Location] Silver Lake/Sycan Marsh 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 with a flat base and a broken tip. M. Christopher 10/23/1998. 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 Spodue 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-] 92 [Collection Name] Bergen [Analysis] Specimen No: 41 [Source Location] Spodue 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, triangular biface. There is an adhering matrix on one side. 11/02/98 D. Bradley.

Black obsidian, stemmed, lanceolate point. M. Christopher 10/30/1998

Black obsidian, corner-notched point. Tip is broken. D. Bradley 02/10/99

Black obsidian, split-stemmed point with serrated edges. M. Christopher 10/30/1998.

Black obsidian, stemmed, bifurcated point. There is an adhering matrix on one side. M. Christopher 10/30/1998.

Black obsidian, side-notched point that is chipped on the base. There is an adhering matrix on one side. M. Christopher 10/30/1998.