Obsidian Cliff Obsidian
date: label: Accession Date
content: 29 Dec 2016
label: Collection Date
content: 28 May 1995
name: label: Collector
content: J. D. Holland
label: Donor Name
content: Estate Of John D. Holland
notes: label: Notes
content: L-1243 (Obsidian Cliff Obsidian): Direct collection from outcrop. Not a collection from archaeological context. Known collection procedure. Collection includes raw material, outer surface, and naturally-weathered specimens.
label: Notes
content: L-1243 (Obsidian Cliff Obsidian)
label: Notes
content: Obsidian Cliff Obsidian, also known as Roaring Mountain, is a black obsidian. It does not respond color-wise to heat, except from some dulling of the glossy surface. When weathered it becomes dull white, tan, brown, or gray. On the vertical surface it is interbedded with ash and other matter. It has a glassy, vitreous texture. Deposits are enormous vertical cliff exposure of a lava flow.
label: Notes
content: Geology remarks: Epoch- Pleistocene, Group- Yellowstone, Form- Plateau Rhyolite, Member- Roaring Mountain
label: Notes
content: Location remarks: Obsidian Cliff is located 8 miles north of Norris in Yellowstone National Park, WY
label: Notes
content: Archaeology remarks: Large piles of obsidian chips near Obsidian Cliff and the finding of arrow points made from Yellowstone Obsidian in the Great Plains and the Mississippi Valley are evidence of the importance of the obsidian trade.
label: Record Last Modified
content: 22 Nov 2019
label: Specimen Count
content: 5
place: label: Place
content: Yellowstone National Park, Wyoming, United States, North America
topic: label: Topic
content: Archaeology
setName: label: See more items in
content: Anthropology
dataSource: label: Data Source
content: NMNH - Anthropology Dept.
identifier: label: Accession Number
content: 2071475
label: USNM Number
content: A568221-0
objectType: label: Object Type
content: Stone