SURFICIAL GEOLOGIC MAP OF THE NEW PRESTON QUADRANGLE LITCHFIELD COUNTY, CONNECTICUT.COLTON RB.1969; U.S. GEOL. SURV., GEOL. QUADRANGLE MAPS; USA; 1969, NUM. 0782-0GQMiscellaneous

SURFICIAL GEOLOGIC MAP OF THE ELLINGTON QUADRANGLE HARTFORD AND TOLLAND COUNTIES CONNECTICUT 1/24000.COLTON RB.1972; U.S. GEOL. SURV., GEOL. QUADRANGLE MAPS; USA; 1972, NUM. 0965Miscellaneous

GEOLOGIC MAP OF THE POPLAR QUADRANGLE, VAL VERDE COUNTY, TEXAS, 1:62500.COLTON RB.1963; U.S. GEOL. SURV., MISC. GEOL. INVEST. MAP.; 1963, NUM. 0367, P. 1Miscellaneous

GEOLOGIC MAP OF THE SPRING CREEK QUADRANGLE, VALLEY COUNTY, MONTANA.COLTON RB.1963; U.S. GEOL. SURV., MISC. GEOL. INVEST. MAP; USA; 1963Miscellaneous

SURFICIAL GEOLOGIC MAP OF THE HAMPDEN QUADRANGLE, MASSACHUSETTS AND CONNECTICUT = CARTE GEOLOGIQUE DES FORMATIONS SUPERFICIELLES DU QUADRILATERE DE HAMPDEN, DANS LE MASSACHUSETTS ET LE CONNECTICUTHILDRETH CT; COLTON RB.1982; ; USA; DA. 1982; 1 SHEET;[GEOL. QUAD. MAP - U. S. GEOL. SURV.; ISSN 0375-8117; VOL. GQ-1544]Serial Issue

GRAVITATIONAL SPREADING OF STEEP-SIDED RIDGES ("SACKUNG") IN COLORADO.RADBRUCH HALL DH; VARNES DJ; COLTON RB et al.1977; J. RES. U.S GEOL. SURV.; U.S.A.; DA. 1977; VOL. 5; NO 3; PP. 359-363; BIBL. 10 REF.; 5 ILL.Article