Scientific confirmations of Old Testament history . aused by a land-slip somewhere above, whichtemporarily cut off the water below. But it is equallypossible that the obstruction was produced by a gentleswell of the land across the channel pushed up by anearthquake. A similar interruption of the waters of the ColumbiaRiver, in Oregon, is known to have occurred at theCascades, where an old channel was permanently ob-structed by an immense land-slide, producing a lakeabove, whose outlet is still over the rocks, which causesthe cascade. We can give no better description of thephenomena than by qu
Scientific confirmations of Old Testament history . aused by a land-slip somewhere above, whichtemporarily cut off the water below. But it is equallypossible that the obstruction was produced by a gentleswell of the land across the channel pushed up by anearthquake. A similar interruption of the waters of the ColumbiaRiver, in Oregon, is known to have occurred at theCascades, where an old channel was permanently ob-structed by an immense land-slide, producing a lakeabove, whose outlet is still over the rocks, which causesthe cascade. We can give no better description of thephenomena than by quoting, from Science for 1887, thewords of Major C. E. Dutton, for a long time a prom-inent member of the United States Geological Survey. The Columbia enters the Cascade barrier three orfour miles below the Dalles. The platform of thatrange here has a width of eighty miles. From the Dallesto the Cascade Locks, a distance of over fifty miles, theColumbia River flows as a broad, deep, quiet stream,with a sluggish current at low water. Its course re-. 134 Physical Preparation for Israel in Palestine. sembles that of the Hudson through the Highlands;and this fact is at once suggestive, because the passageof rivers through mountain ranges is generally swift,and broken by many rapids. If it is otherwise, there isalmost certainly an interesting reason for it. The Cas-cade Locks are situated almost exactly on the axis ofthe Cascade range. Here is a cataract which has alwaysbeen an insurmountable obstacle to navigation; for,within a distance of a few hundred yards, the rivermakes a descent of about thirty feet. The governmentis now building a short canal with large locks, to enablesteamboats from below to reach the still waters at a point about a mile and a half above thecataract, the traveler, as he sails up the river, observesmany old stubs protruding from the water and from thesand-banks, laid bare during the low stages of the are seen for a distance of thi
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