What is the world's largest known alluvial boulder ? I don't mean a solid stone mountain or hill (since that's not a boulder). Places like Ayre's Rock in Australia are one vast piece of stone. Nor do I mean a giant isolated piece of rock. By 'alluvial boulder' I mean a piece of rock, usually with rounded ends that is now located away from the bedrock away from which it came and which got there after water had formed its curved edges. No part of it is attached to other rocks.
Any suggestions ?
2006-12-09 17:15:57 · 2 answers · asked by democracynow 2 in Science & Mathematics ➔ Earth Sciences & Geology
Located in the heart of the Columbia River Gorge National Scenic Area, Beacon Rock is the core of an ancient volcano. The mile-long trail to its summit provides outstanding panoramic views of the Columbia River Gorge.
http://www.parks.wa.gov/parkpage.asp?selectedpark=Beacon%20Rock
2006-12-09 17:27:34 · answer #1 · answered by Noka 3 · 0⤊ 0⤋
The Earth. I'd say that's one hell of a boulder.
2006-12-10 02:51:01 · answer #2 · answered by Jimmy H 4 · 0⤊ 0⤋