Black obsidian, square-shouldered point. There is an adhering matrix on one side. D. Bradley 01/11/99

Black obsidian, lanceolate point with a concave base. K. Peterson 2/3/99

Black obsidian biface with retouched edges. M. Christopher 10/23/1998.

Black obsidian, stemmed, squeare-shouldered point with contracting stem. Barb is chipped. D. Bradley 01/27/99

Black obsidian, leaf-shaped biface. D.Bradley 10-26-98

Ground mammal bone tool fragment. Root-etching covers entires surface. D. Bradley 10-26-98

Black obsidian biface. D. Bradley 10-26-98.

Black obsidian side-notched point with a flat base and a broken tip. 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-] 72 [Collection Name] Bergen [Analysis] Specimen No: 34 [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, leaf-shaped biface with residue around the edge. M. Christopher 5/28/98

Black obsidian point, one side is corner-notched and the opposite side is side-notched. The tip is broken. D. Bradley 01/11/99