MONTANA GEOLOGY 25 GEOLOGIC MAPS COVERING VARIOUS PARTS OF THE STATE. All published by the U. S. Geological Survey, with maps in sleeves. The sleeves/envelopes may have some wear; the maps they contain are in good condition. Regions of Montana covered include mineral rich areas of ore deposits, low-topography areas of eastern Montana, classic quadrangles such as Bozeman Pass and Fort Ellis, and more. A nice set of Montana maps that show the diversity of bedrock geology that makes up the State. The maps are as follows:

(1) Colton R. B. 1964 GEOLOGIC MAP OF THE SOUTH HALF OF THE BAYLOR, LARSLAN, WEST FORK, POLICE CREEK, KAHLE, AND LUNDVILLE QUADRANGLES, VALLEY, ROOSEVELT AND DANIELS COUNTIES MONTANA U. S. Geological Survey Map I-361.

(2) Colton R. B. 1963 GEOLOGIC MAP OF THE BROCKTON QUADRANGLE ROOSEVELT AND RICHLAND COUNTIES MONTANA U. S. Geological Survey Map I-362.

(3) Colton R. B. 1963 GEOLOGIC MAP OF THE CHELSEA QUADRANGLE ROOSEVELT AND MCCONE COUNTIES MONTANA U. S. Geological Survey Map I-363.

(4) Colton R. B. 1963 GEOLOGIC MAP OF THE HAY CREEK QUADRANGLE ROOSEVELT COUNTY MONTANA U. S. Geological Survey Map I-365.

(5) Colton R. 1963 GEOLOGIC MAP OF THE OSWEGO QUADRANGLE VALLEY, ROOSEVELT AND MCONE COUNTIES MONTANA U. S. Geological Survey Map I-366.

(6) Colton R. B. 1963 GEOLOGIC MAP OF THE POPLAR QUADRANGLE, ROOSEVELT, RICHLAND AND MCCONE COUNTIES MONTANA U. S. Geological Survey Map I-367.

(7) Colton R. B. 1963 GEOLOGIC MAP OF THE CUSKERS QUADRANGLE ROOSEVELT COUNTY MONTANA U. S. Geological Survey Map I-364.

(8) Colton R. B. 1963 GEOLOGIC MAP OF THE PORCUPINE VALLEY QUADRANGLE VALLEY COUNTY MONTANA U. S. Geological Survey Map I-368.

(9) Colton R. B. 1963 GEOLOGIC MAP OF THE SPRING CREEK QUADRANGLE, VALLEY COUNTY MONTANA U. S. Geological Survey Map I-369.

(10) Colton R. B. GEOLOGIC MAP OF THE TODD LAKES QUADRANGLE VALLEY AND ROOSEVELT COUNTIES MONTANA U. S. Geological Survey Map I-370.

(11) Colton R. B. 1963 GEOLOGIC MAP OF THE TULE VALLEY QUADRANGLE ROOSEVELT COUNTY MONTANA U. S. Geological Survey Map I-371.

(12) Lindvall R. M. 1961 GEOLOGY OF THE BOXELDER QUADRANGLE MONTANA (Chouteau County) U. S. Geological Survey Map I-338.

(13) Lindvall R. M. 1962 GEOLOGY OF THE EAGLE BUTTES QUADRANGLE CHOUTEAU COUNTY MONTANA U. S. Geological Survey Map I-349.

(14) Lindvall R. M. 1962 GEOLOGY OF THE ESKAY QUADRANGLE CHOTEAU AND BLAINE COUNTIES MONTANA U. S. Geological Survey Map I-353.

(15) Earhart et al. 1977 MINERAL RESOURCES OF THE CHOTEAU 1 X 2 DEGREE QUADRANGLE, MONTANA U. S. Geological Survey Map MF-858A.

(16) Smedes H. W. et al. 1962 PRELIMINARY GEOLOGIC MAP OF THE ELK PARK QUADRANGLE JEFFERSON AND SILVER BOW COUNTIES MONTANA U. S. Geological  Survey Map MF-246.

(17) Beacraft G. E. 1960 PRELIMINARY GEOLOGIC MAP OF THE SOUTHERN HALF OF THE JEFFERSON CITY QUADRANGLE, JEFFERSON COUNTY MONTANA U. S. Geological Survey Map MF-172.

(18) Ruppel E. T. 1961 RECONNAISSANCE GEOLOGIC MAP OF THE DEER LODGE QUADRANGLE POWELL, DEER LODGE AND JEFFERSON COUNTIES MONTANA U. S. Geological Survey Map MF-174.

(19) Schmidt R. G. 1963 PRELIMINARY GEOLOGIC MAP AND SECTIONS OF THE HOGAN AND SOUTHEAST QUADRANGLE, LEWIS  AND CLARK COUNTY MONTANA U. S. Geological Survey Map I-379.

(20) Schmidt R. G. Swanson D. A. and Zubovic P. 1964 PRELIM. GEOLOGIC MAP AND SECTIONS OF THE HOGAN 4 NW QUADRANGLE LEWIS AND CLARK AND CASCADE COUNTIES MONTANA U. S. Geological Survey Map I-409.

(21) Roberts A. E. 1964 GEOLOGIC MAP OF THE FORT ELLIS QUADRANGLE MONTANA (Gallatin County) U. S. Geological Survey Map I-397.

(22) Roberts A. E. 1964 GEOLOGIC MAP OF THE BOZEMAN  PASS QUADRANGLE (Gallatin County) U. S. Geological Survey Map I-399.

(23) Osterwald F. W. and Dean B. G. 1958 PRELIMINARY TECTONIC MAP OF EASTERN MONTANA SHOWING THE DISTRIBUTION OF URANIUM DEPOSITS U. S. Geological Survey Map MF-126.

(24) Merewether E. A. 1960 GEOLOGIC MAP OF THE IGNEOUS AND METAMORPHIC ROCKS OF MONTANA SHOWING LOCATION OF  URANIUM DEPOSITS U. S. Geological Survey Map MF-311.

(25) Zeitz I. et al. 1980 AEROMAGNETIC MAP OF MONTANA IN COLOR U. S. Geological Survey Map GP-934 large folding map in sleeve, with duplicate copy included (looks to be a US Gov't Printing Office packaging error, so you get an extra copy).

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