. Bulletin of the Geological Society of America. Geology. KENNEDY GRAVELS 329 obscure stratification, the topographic form, and the position of the mesa, all characterize this occurrence as a remnant of an alluvial cone of Kennedy creek. No earlier record has been detected in the history of that stream. Since that date, however, the valley has been cut down 900 feet, a glacial epoch has intervened, and the channel has recently been reexcavated and sunk deeper in the subterrane. Certain tabular drift surfaces between Swift Current and South Ken- nedy creeks and on the northern slope of Yellow m
. Bulletin of the Geological Society of America. Geology. KENNEDY GRAVELS 329 obscure stratification, the topographic form, and the position of the mesa, all characterize this occurrence as a remnant of an alluvial cone of Kennedy creek. No earlier record has been detected in the history of that stream. Since that date, however, the valley has been cut down 900 feet, a glacial epoch has intervened, and the channel has recently been reexcavated and sunk deeper in the subterrane. Certain tabular drift surfaces between Swift Current and South Ken- nedy creeks and on the northern slope of Yellow mountain are probabty not of the Kennedy formation, but are outwash plains beyond moraines. Gravel mesas,that are correlative with the Kennedy and maybe included under the formation name, occur in Canada, one lying 6 to 8 miles north by west from Chief mountain and east of Belly river; another, a group of three hills, occurring east of lower Waterton lake, a few miles north of the boundary (figure 2). The basis of correlation in these two cases is general form, altitude, and constitution of the masses, which were not, however, examined in Figure 2.—Sketch of northern End of Lewis Range. Showing flat topped foothills of the Kennedy formation standing above terraces of valley drift. Looking east near the outlet of Waterton lake, Alberta, down Pass creek. Gravels are widely spread on the highest tables of the Plains north of Catbank river and between the forks of Milk river. Their position sug- gests a correlation with the Kennedy formation. On the other hand, the gravels of the Plains are composed chiefly of quartzite and presumably have lost the more soluble constituents, which still occur in the Ken- nedy formation. From this distinction, greater antiquity may be argned for the high level gravels of the Plains. Salisbmy, in summarizing the results of Calhoun's observations in 1901 in this region, says : * " The high-level quartzite gravels on the plains east of t
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