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104 THE CONDOR Vol. XX Fig. 13. NESTING SITES OF WHITE-THROATED SWIFT WERE IN THE FACE OF THE BLUFF A LIT- TIE TO RIGHT OF CENTER OF PICTURE; DEBRIS SLOPE AT BASE; CvRAND RIVER? COL- ORADO, IN FORE. dred feet of work, rope ladders, anchors, miner's picks, cold chisels, etc. On June 24, with three experienced young assistants, I took train, crossing the Continental Divide at ah elevation of 11,666 feet that evening, and located and briefly prospected our ground, two miles distant from our stopping place. Fig. 14. SHOWING FROM ABOVE AND IN BEAR THE SEQUESTERED PINNACLES THE FACES OF WIIICH %VERE FAVORITE NESTING SITES OF THE WHITE-THROATED SWIFT; GRAND RIVER, COLORADO.
