AUG 20 1969, AUG 21 1969; Prelude to a Skyscraper; The huge.crane in center is working on one of 249

AUG 20 1969, AUG 21 1969; Prelude to a Skyscraper; The huge.crane in center is working on one of 249 foundation holes which are being drilled, then filled with steel and concrete, to support the 26- story Colorado State Bank Building soon to rise at 16th Ave. and Broad-¡way at a cost of $20 millilon. The foundation piers or caissons are being drilled from 59 to 62 feet deep to penetrate bedrock. Some of the piers are among the largest ever installed in this area, up to eight feet across.; (Photo By John Prieto/The Denver Post via Getty Images)