Delta, Colorado. Banks TWO Colorado national banks receive charters* R14N Jan. 28, 1965 P-38 National Bank to be acquired by United Banks of Colorado, Inc. RMN Je 6, 1972 p.41 United Banks of Colorado receives Federal Reserve permission to acquire National Bank of Delta. RMN Ap 29, 1973 p.72 Colorado State Banking Board closes Gunnison Industrial Bank and Delta Bank. RMN Ag 4, 1984 p.89 0