 | Geological Society of America - 1895 - 608 lapas
...6,000 feet above the prairies at their base. Their structure has been thor oughly studied by Wolff, who finds that they consist of late Cretaceous strata,...not less than one mile in vertical amount reduced nil the adjoining region to a baselevel of erosion. The Highwood mountains, about 25 miles east of... | |
 | 1891 - 902 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata,...baselevel of erosion. The Highwood Mountains, about 25 miles east of Great Falls, Montana, having a height of 7,600 feet above the sea, or about 3,500... | |
 | American Association for the Advancement of Science - 1892 - 614 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata,...miles east of Great Palls, Montana, having a height of 7,600 feet above the sea or about 3.500 feet above their base, are described by Davis as display Ing... | |
 | American Association for the Advancement of Science - 1892 - 604 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata,...surrounding country to a base-level of erosion. The Hlghwood mountains, about twenty-five miles east of Great Falls, Montana, having a height of 7.GOO... | |
 | Geological Society of America - 1893 - 616 lapas
...(i.OOO feet above the prairies at their l>ase. Their structure haH been thor oughly studied by Wolff, who finds that they consist of late Cretaceous strata,...less than one mile in vertical amount reduced all the adjoining region to a baselevel of erosion. The Highwood mountains, about 25 miles east of Great Falls,... | |
 | Newton Horace Winchell - 1894 - 474 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by Wolff', who finds that they consist of late Cretaceous strata,...less than one mile in vertical amount reduced all the adjoining region to a baselevel of erosion. The High wood mountains, about 25 miles east of Great Falls,... | |
 | 1894 - 456 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by \Volft", who finds that they consist of late Cretaceous strata,...stratification, intersected by a network of eruptive tlikes. The more enduring igneous rocks have preserved this range, while an average denudation of not... | |
 | Newton Horace Winchell - 1894 - 466 lapas
...6,000 feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata,...sandstones, nearly horizontal in stratification, intersected byа network of eruptive dikes. The more enduring igneous rocks have preserved this range, while an... | |
 | Geological Society of America - 1895 - 700 lapas
...(i,000 feet above the prairies at their base. Their structure has been thor oughly studied by Wolff, who finds that they consist of late Cretaceous strata,...less than one mile in vertical amount reduced all the adjoining region to a baselevel of erosion. The Highwood mountains, about 25 miles east of Great Falls,... | |
 | Jacob Vradenberg Brower - 1896 - 200 lapas
...r,,<HK) feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata,...less than one mile in vertical amount reduced all the adjoining region to a base-level of erosion. The High wood Mountains, about twenty-five miles east... | |
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... feet above the prairies at their base. Their structure has been thoroughly studied by Wolff, who finds that they consist of late Cretaceous strata, soft sandstones, nearly horizontal in stratification, intersected by a network of eruptive dikes. The... 
