The area of Obsidian Cliff is 14.488 square kilometers.
Leslie B. Davis has written: 'The Obsidian Cliff Plateau, prehistoric lithic source, Yellowstone National Park, Wyoming' -- subject(s): Petrology in archaeology, Indians of North America, Obsidian, Antiquities, Implements, Obsidian implements
The area of Treen Cliff is 493,000.0 square meters.
The area of Uphill Cliff is 198,000.0 square meters.
The area of Cliff Stephens Park is 178,061.6825856 square meters.
The area of Houghton Green Cliff is 1,250.0 square meters.
The area of Cliff Island National Park is 430,000.0 square meters.
Obsidian is a naturally occurring volcanic form of glass.
Obsidian
Mahogany Obsidian
No. Obsidian is brittle.
cliff is an open area so when we shout the sound goes echoes
No. Obsidian is natural glass, mostly silica. Obsidian is of volcanic origin.