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Oregon's North Falls as viewed from within the huge cavern carved out behind the waterfall over many thousands of years. This huge waterfall and a very memorable part of North Silver Creek was formed from 15-16 million-year-old volcanic bedrock (basalt) which has been withstanding the millions of years of water and weather erosion while the surrounding sandstone (once part of the Oregon coastline) which is very slowly wearing away. As it stands now, the waterfall drops 136 and continues downstream through a series of other spectacular waterfalls. The huge cavern behind the falls reaches back about 100 feet, has a ceiling that ranges from 20 to 75 feet high and is (in my estimation) about 800-900 feet wide. Very impressive, to say the least!
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Oregon's North Falls as viewed from within the huge cavern carved out behind the waterfall over many thousands of years. This huge waterfall and a very memorable part of North Silver Creek was formed from 15-16 million-year-old volcanic bedrock (basalt) which has been withstanding the millions of years of water and weather erosion while the surrounding sandstone (once part of the Oregon coastline) which is very slowly wearing away. As it stands now, the waterfall drops 136 and continues...
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