Significant Deposits

Tracts AD03 to FFTG

GIS DATA			Location						Classification					Past Production (Amount Recovered)										Remaining Resources
Layer	Tract	Map No.	Deposit	District	County	State	Long	Lat	No.	Deposit Type	No.	Alternative deposit types	Environmental Model	Discovery Year	Production Dates	Tonnage thousand metric t	Au metric t	Ag metric t	Cu thousand metric t	Pb thousand metric t	Zn thousand metric t	OtherProduction	References: Production	Resource Year	Tonnage thousand metric t	Au metric t	Ag metric t	Cu thousand metric t	Pb thousand metric t	Zn thousand metric t	Other Grades	References: Resources	Comments	Operators
SEDX	AD03	01, 02, 03	Pierrepont, Edwards, and Balmat	Balmat-Edwards	St. Lawrence	NY	-75.400	44.252	31a	Sedimentary exhalative Zn-Pb			Sedimentary exhalative Zn-Pb-Ag	1903	1911-1986	31,096	no	61	no	77	2,494	Pyrites	USBM Minerals Yearbooks; St. Joe Minerals 1971-80 SEC Form 10K; Fluor Corp. 1981-86 SEC Form 10K	1986	3,400	no	unk	no	unk	436	Cadmium	Fluor Corp. 1986 SEC Form 10K	Includes Edwards, Balmat, and Pierrepoint Mines	Zinc Corporation of America
SCU2	CP03	01	Lisbon Valley	Lisbon Valley	San Juan	UT	-109.125	38.125	30b	Sediment-hosted Cu, redbed			Sediment-hosted Cu	~1886	1896-1973	>140	no	no	13	no	no		Morrison and Parry, 1986	1997	87,500	no	neg	359	no	no		Summo Minerals website	Resource in Centennial, Sentinal, and GTO deposits.	Summo Minerals
PMR1	CR15	01	Gilman	Gilman	Eagle	CO	-106.367	39.517	19a	Polymetallic replacement			Polymetallic vein and replacement	1878	1880-1981	11,890	12	2,104	96	144	848	Manganese	Lovering and others, 1978; Gulf and Western Industries SEC Form 10K 1972-81; Radabaugh and others, 1968										Production is for Eagle County of which >99% by value is from Gilman district. Reserves depleted.
PMR1	CR15	02	Aspen	Roaring Fork (Aspen)	Pitkin	CO	-106.833	39.167	19a	Polymetallic replacement		Sherman-type	Polymetallic vein and replacement	1879	1880-1956	2,863	neg	3,114	neg	254	11		Henderson, 1926; USBM Minerals Yearbook and Production Data 1902-56											Aspen Western
PMR2	CR16	01	Tenmile (Kokomo - Robinson - Frisco)	Consolidated Tenmile	Summit	CO	-106.214	39.417	19a	Polymetallic replacement	22c	Vein, polymetallic	Polymetallic vein and replacement	1878	1879-1956	>506	1.6	89	neg	>14	34		Bergendahl and Koschmann, 1971; Koschmann and Bergendahl, 1968; USBM Production Data 1902-4										Silver production before 1902 estimated using silver to gold ratio for ore produced 1902-04.
PMR2	CR16	02	Alma	Mosquito (Alma)	Park Lake	CO CO	-106.125	39.333	19a	Polymetallic replacement	22c	Vein, polymetallic	Polymetallic vein and replacement	1860	1902-1989	1,212	27	30	neg	10	neg		USBM Minerals Yearbook and Production Data 1902-1958; Cobb Resources SEC Form 10K 1988-89	1988	927	9	unk	no	no	no		Cobb Resources 1988 SEC Form 10K	Substantial production from 1874 to 1901.	Alma American - Cobb Resources - Boulder Gold
PMR2	CR16	03	Leadville	California	Lake	CO	-106.250	39.250	19a	Polymetallic replacement	22c	Vein, polymetallic	Polymetallic vein and replacement	1868	1869-1997	24,173	89	7,672	>47	1,141	1,039	Pyrites, manganese, iron, bismuth	Henderson, 1926; USBM Minerals Yearbooks and Production Data 1904-70; Asarco SEC Form 10K 1971-97	1996	23,389	>35	1,259	>3	>252	>614	Manganese, pyrites	Asarco 1996 SEC Form 10K (Black Cloud); USBM Minerals Yearbook 1986 (Diamond-Resurrection); Randol 1996 (Hopemore); Meeves and Darnell, 1970 (district resources)	Excludes production from Sherman mine. Production before 1904 includes small production from other districts in Lake County. Resource at Black Cloud, Diamond-Resurrection, Hopemore mines and remainder of district. Resource data incomplete.	Asarco - Leadville Corp. - Canuc Resources - Leadville M & M
PMR3	CR17	01	Lone Cone	Lone Cone (Dunton)	Dolores	CO	-108.098	37.767	22c	Vein, polymetallic			Polymetallic vein and replacement	1880	1896-1950	>81	0.7	33	neg	neg	neg		McKnight, 1974; Henderson, 1926; USBM Minerals Yearbooks and Production Data 1902-77	1991	102	1.4	28	unk	unk	unk		Robertson Info-Mine	Resource at Emma mine.	Lucas Gold Resources - National Gold and Nickel Resources
PMR3	CR17	01	Rico	Pioneer	Dolores	CO	-108.025	37.667	19a	Polymetallic replacement	22c	Vein, polymetallic	Polymetallic vein and replacement	1869	1879-1977	>925	3	455	5	77	77	Pyrites	McKnight, 1974; Henderson, 1926; USBM Minerals Yearbooks and Production Data 1902-77	1985	1,700	2	100	34	unk	unk		Long, 1992	Production data incomplete. Resource at NBH replacement deposit.
PMR1	CR18	01	Magdalena	Magdalena	Socorro	NM	-107.208	34.083	19a	Polymetallic replacement			Polymetallic vein and replacement	1866	1866-1968	>1,400	0.11	124	5	57	159		North and McLemore, 1986; Loughlin and Koschman, 1942; USBM Minerals Yearbooks 1940-57; McLemore, 1997											Cobb Resources
PMR1	CR19	01	Presidio	Shafter	Presidio	TX	-104.330	29.810	19a	Polymetallic replacement			Polymetallic vein and replacement	1880	1885-1947	2,116	0.19	929	neg	36	neg		Evans, 1975; Henderson, 1943; Ross, 1943	1985	>9,000	unk	1,555	unk	unk	unk		Long, 1992
ALKG	CR20	01	Jamestown	Central	Boulder	CO	-105.375	40.125	22b	Alkaline Au-Te	22c	Vein, polymetallic	Au-At-Te vein	1865	1882-1959	>660	>2.2	>10	neg	>1	neg		Lovering and Goddard, 1950; USBM Minerals Yearbook and Production Data 1902-59			0.6					Fluorite, molybdenum	Randol 1996	Production from both alkaline Au-Te and polymetallic vein deposits. Resource at Cash mine.	Energetics
ALKG	CR20	02	Ward	Ward	Boulder	CO	-105.500	40.071	22b	Alkaline Au-Te	22c	Vein, polymetallic	Au-At-Te vein	1861	1902-1959	64	1.3	23	neg	neg	no		Lovering and Goddard, 1950; USBM Minerals Yearbook and Production Data 1902-59										Perhaps 1.5 metric t Au and 28 metric t Ag produced 1885-1901. Production from both alkaline Au-Te and polymetallic vein deposits.
ALKG	CR20	03	Gold Hill	Gold Hill	Boulder	CO	-105.383	40.054	22b	Alkaline Au-Te	22c	Vein, polymetallic	Au-At-Te vein	1859	1902-1959	432	5	17	neg	1	neg		USBM Minerals Yearbooks and Production Data 1902-59		116	2	18	no	no	no		Randol 1996	Production from both alkaline Au-Te and polymetallic vein deposits. Resource at Cash mine.	Gold Hill Ventures
ALKG	CR20	04	Magnolia	Magnolia	Boulder	CO	-105.380	39.990	22b	Alkaline Au-Te	22c	Vein, polymetallic	Au-At-Te vein	1875	1875-1953	>27	5	sig	neg	neg	no		Lovering and Goddard, 1950; USBM Minerals Yearbook and Production Data 1902-53										Production, probably overestimated, from both alkaline Au-Te and polymetallic vein deposits.	Keystone M & M
ALKG	CR20	05	Allard	La Plata (California)	La Plata	CO	-108.088	37.407	20c	Porphyry Cu-Au			Porphyry Cu	by 1902		no	no	no	no	no	no			1984	32,000	2	163	128	no	no	Platinum	Mutschler and Mooney, 1995		Aston Resources
ALKG	CR20	05	La Plata	La Plata (California)	La Plata	CO	-108.042	37.417	22b	Alkaline Au-Te			Au-At-Te vein	1873	1878-1958	>165	6	63	neg	neg	neg		Eckel and others, 1949; USBM Minerals Yearbook 1938-57	1985	126	5	6	unk	unk	unk		Saunders and May, 1986	Resource at Bessie G mine.
ALKG	CR21	01	Cripple Creek	Cripple Creek	Teller	CO	-105.133	38.717	22b	Alkaline Au-Te			Au-At-Te vein	1890	1891-1993	>31,456	605	72	neg	neg	no		Henderson, 1926; USBM Minerals Yearbook 1924-62; Nerco SEC Form 10K 1989-91; Golden Cycle SEC Form 10K 1987-93	1997	76,711	85	unk	no	no	no		Golden Cycle 1997 SEC Form 10K		Independence Mining - Golden Cycle Gold
ALKG	CR22	01	Elizabethtown-Baldy	Elizabethtown-Baldy	Colfax	NM	-105.250	36.625	22b	Alkaline Au-Te	22c	Vein, polymetallic	Au-Ag-Te vein	1866	1904-1952	182	7	0.8	neg	neg	no		North and McLemore, 1988; McLemore, 1996a
ALKG	CR22	02	Ortiz - Cunningham Hill	Old Placers	Santa Fe	NM	-106.132	35.339	22b	Alkaline Au-Te			Au-Ag-Te vein	1828	1828-1986	>2,427	11	neg	neg	neg	no		McLemore, 1996a	1991	35,880	54	unk	no	no	no		Lac Minerals 1991 Annual Report	Resource for Cunningham Hill property only.	Barrick Gold
ALKG	CR22	03	Carache Canyon	Old Placers	Santa Fe	NM	-106.163	35.317	22b	Alkaline Au-Te			Au-Ag-Te vein	by 1934		no	no	no	no	no	no			1992	15,200	36	unk	no	no	no		AMH 1993 entry for Pegasus Gold		Barrick Gold
ALKG	CR22	04	Lukas Canyon	Old Placers	Santa Fe	NM	-106.189	35.301	18b	Skarn, Cu			Cu, Au, and Pb-Zn skarn	by 1986		no	no	no	no	no	no			1992	9,600	11	unk	24	no	no		AMH 1993 entry for Pegasus Gold; Maynard, 1995		Barrick Gold
ALKG	CR22	05	White Oaks	White Oaks	Lincoln	NM	-106.750	33.767	22b	Alkaline Au-Te			Au-Ag-Te vein	1850	1850-1951	>2	5	0.03	neg	neg	neg	Tungsten	McLemore, 1991
ALKG	CR22	06	Nogal	Nogal	Lincoln	NM	-105.750	33.530	22b	Alkaline Au-Te	20c	Porphyry Cu-Au	Au-Ag-Te vein	1865	1902-1942	54	0.2	0.6	neg	neg	neg		McLemore, 1991	1938	1,412	6	unk	no	no	no		Ryberg, 1991	Resource for Vera Cruz deposit, gold grade overestimated.	FMC Gold - Vera Cruz Minerals
KVMS	CR24	01	Dawson	Grape Creek	Fremont	CO	-105.290	38.390	28a	Massive sulfide, kuroko			Volcanic-associated massive sulfide	by 1916	1943-1959	6	neg	neg	neg	neg	neg		USBM Minerals Yearbook and Production Data 1943-47		391	4	unk	unk	unk	unk		Randol 1996	Production for Grape Creek district.	Celtic Minerals - Uranerz
KVMS	CR24	02	Gunnison Gold Belt	Cebolla	Gunnison	CO	-107.100	38.367	28a	Massive sulfide, kuroko			Volcanic-associated massive sulfide	1897	1902-1957	51	0.3	1	neg	neg	neg		USBM Minerals Yearbook and Production Data 1902-57		1,651	3	unk	unk	unk	unk		EMJ 1/85; AMH 1989	Production from several deposits.	Colorado Gold
KVMS	CR25	01	Pecos	Willow Creek	San Miguel	NM	-105.667	35.792	28a	Massive sulfide, kuroko			Volcanic-associated massive sulfide	1883	1902-1944	2,089	6	170	9	61	191		McLemore, 1995										Resource not depleted when underground mining ceased in 1939.
QZAD	CR26	01	Galena	Galena	Hinsdale	CO	-107.318	38.058	22c	Vein, polymetallic			Polymetallic vein and replacement	1871	1902-1959	115	0.1	19	1	5	neg		USBM Minerals Yearbooks and Production Data 1902-59
QZAD	CR26	01	Lake City	Lake	Hinsdale	CO	-107.333	38.017	22b	Epithermal vein, Creede	22b	Alkaline Au-Te	Creede, Comstock and Sado epithermal vein	~1842	1902-1961	27	0.2	11	neg	1	neg		USBM Minerals Yearbooks and Production Data 1902-61											Earth Sciences
QZAD	CR26	02	Creede (Amethyst, Bulldog etc. veins)	Creede	Mineral	CO	-106.933	37.875	25b	Epithermal vein, Creede		Vein, polymetallic	Creede, Comstock and Sado epithermal vein	1883	1891-1985	>3,481	5	2,619	2	143	44		Steven and Ratté, 1965; USBM Minerals Yearbooks 1957-71; Homestake SEC Form 10K 1972-85	1985	1,100	unk	530	unk	21	unk		Homestake 1985 SEC Form 10K	Resource at Bulldog mine.	Homestake - Crown Resources - Sutton Resources
QZAD	CR26	03	Crystal Hill	Crystal Hill	Saguache	CO	-106.270	37.870		Epithermal vein, quartz-adularia			Creede, Comstock and Sado epithermal vein	~1880	1907-1953	18	neg	0.3	neg	neg	no		USBM Minerals Yearbook and Production Data 1907-53		1,400	1.6	15	unk	no	no		Pansze, 1987	Production before 1902 unknown.
QZAD	CR26	04	Platoro	Platoro	Conejos	CO	-106.536	37.350		Epithermal vein, quartz-adularia	25b	Epithermal vein, Creede	Creede, Comstock and Sado epithermal vein	1861?	1885-1952	1	neg	2	neg	neg	no		Henderson, 1926; USBM Minerals Yearbooks 1938-52		549	3	112	no	no	no		AMH 1997 entry for International Panorama Resources		Union Mines - International Panorama Resource
QZAD	CR27	01	Mogollon	Mogollon	Catron	NM	-108.800	33.400	25c	Epithermal vein, Comstock			Creede, Comstock and Sado epithermal vein	1875	1902-1969	unk	11	>622	neg	neg	neg		McLemore, 1996b
QZAD	CR27	02	St. Cloud	Chloride	Sierra	NM	-107.710	33.330		Epithermal vein, quartz-adularia			Creede, Comstock and Sado epithermal vein	1879	1982-1993	340	0.25	75	3	no	no		Goldfield Corp. SEC Form 10K 1982-93	1993	344	0.3	73	3	no	no		Goldfield Corp. 1993 SEC Form 10K	Production tonnage excludes 112,000 metric t tailings; metals recovered are included in metals produced.	Goldfield Corp.
QZAL	CR29	01	Summitville	Summitville	Rio Grande	CO	-106.550	37.417	25e	Epithermal vein, quartz-alunite			Epithermal quartz-alunite Au vein	1870	1873-1992	>9,707	17	23	neg	neg	no		Henderson, 1926; USBM Minerals Yearbook 1924-58; Galactic Resources SEC Form 10K 1986-91										Reserves depleted.
SCU3	CR34	01	Nacimiento	Nacimiento	Sandoval	NM	-106.900	35.985	30b	Sediment-hosted Cu, redbed			Sediment-hosted Cu	1850's	1880-1975	5,300	no	2	28	neg	neg		North and McLemore, 1986; Woodward and others, 1974; Earth Science Annual Reports 1971-74; Anthony, 1979	1975	12,263	neg	unk	59	no	no		Anthony, 1979		Leaching Technology
LSGQ	CR36	01	Douglas Creek	Keystone	Albany	WY	-106.244	41.167	39a	Placer Au				by 1873	1873-1946		0.1	unk	no	no	no		Currey, 1965	1906		>2.3	unk	no	no	no		Hausel, 1989	Small production of placer Au since 1965.
MVTD	EC03	01	Central Tennessee	Central Tennessee	Jackson, Smith, Trousdale	TN	-85.934	36.197	32	Mississippi Valley	32b	Appalachian Zn	Mississippi Valley-type Pb-Zn	1967	1975-1995	19,000	no	unk	no	no	590	Cadmium, germanium, limestone, dolomite, sulfuric acid	Estimated from New Jersey Zinc/Union Zinc SEC Form 10K/Annual Reports	1997	34,100	no	no	no	no	1,091	Cadmium; 0.002% Ge	Savage Zinc 1997 Annual Report	Reserves at Gordonsville and satellite deposits. Carthage in 1978 estimated to have 45 to 68 million metric t ore with 3.5 to 5.2% Zn. Does not include significant resources at Gainsboro and Roaring River deposits.	Savage Zinc
MVTD	EC05	01	Friedensville	Friedensville	Lehigh	PA	-75.405	40.554	32	Mississippi Valley	32b	Appalachian Zn	Mississippi Valley-type Pb-Zn	~1830	1847-1983	12,300	no	no	no	no	748		Callahan 1968; Metsger and others, 1973; Smith, 1977; New Jersey Zinc SEC Form 10K 1972-1980, USBM Mineral Yearbooks	1982	6,800	no	no	no	no	449		New Jersey Zinc SEC Form 10K 1980	Resource is estimated by deducting 1981-1982 production from 7/31/80 reserve.
MVTD	EC05	02	Austinville-Ivanhoe	Austinville-Ivanhoe	Wythe	VA	-80.920	36.847	32	Mississippi Valley			Mississippi Valley-type Pb-Zn	by 1756	1838-1981	29,000	no	unk	no	29	1,420	Limestone, dolomite	Miller, 1985	1981	983	neg	unk	neg	8	39		New Jersey Zinc 1980 SEC Form 10K	Remaining resource is year-end 1980 reserve less 1981 production.
MVTD	EC05	03	Copper Ridge	Copper Ridge	Grainger, Hancock, Hawkins	TN	-83.350	36.400	32	Mississippi Valley	32b	Appalachian Zn	Mississippi Valley-type Pb-Zn	by 1920	1959-1981	5,400	no	no	no	no	172	Cadmium, limestone, dolomite	Estimated from New Jersey Zinc SEC Form 10K and production tonnages reported in World Mining, Annual Survey Issue, 1959-1981; Substantial unreported production from 1982 to 1996.	1997	6,100	no	no	no	no	195	Cadmium	Savage Zinc 1997 Annual Report	Does not include remaining resource for Idol (Asarco) mine.	Savage Zinc - Asarco
MVTD	EC05	03	Embreeville	Embreeville	Washington	TN	-82.483	36.167	32	Mississippi Valley	32b	Appalachian Zn	Mississippi Valley-type Pb-Zn	by 1839	1913-1951	525	no	no	no	16	73		USBM Mineral Yearbooks, USBM Production Data	1953	955	no	no	no	no	86		Wisser, 1953	All of past production and most of resource consists of carbonate ore. Sulfide resources not fully explored as of 1953.
MVTD	EC05	03	Mascot-Jefferson City	Mascot-Jefferson City	Knox, Jefferson	TN	-83.350	36.400	32	Mississippi Valley	32b	Appalachian Zn	Mississippi Valley-type Pb-Zn	by 1890	1907-1995	>129,000	no	no	no	neg	>2,400	Cadmium, limestone	USBM Mineral Yearbooks, Asarco SEC Form 10Ks 1972-1996, New Jersey Zinc SEC Form 10K, 1972-1981, USBM data	1995	4,215	no	no	no	neg	138	Cadmium	Asarco 1996 SEC Form 10K; Savage Zinc 1996 Annual Report	Production data incomplete. Excludes about 48 million metric t resource reported by Asarco in 1977; does not include resources at Mitchell Bend.	Asarco
FFTG	FFTG	01	San Luis	San Luis	Costilla	CO	-105.342	37.254	40a	Detachment-fault-related polymetallic				late 1500s	1991-1996	8,196	11	5	no	no	no		Battle Mountain Gold SEC Form 10K 1991-96	1986	690	1	unk	unk	no	no		Battle Mountain Gold 1996 SEC Form 10K	Resource estimated by deducting 1996 production from 1995 reserves.	Battle Mountain Gold - Earth Sciences
FFTG	FFTG	02	Briggs	Panamint	Inyo	CA	-117.185	35.938	40a	Detachment-fault-related polymetallic				1989	1996-1997	3,305	2.2	1	no	no	no		Canyon Resources 1996-1997 SEC Form 10K	1996	32,523	35	unk	no	no	no		Canyon Resources 1996 10K	Geologic inventory including Gold Tooth, North Briggs, and Cecil R deposits.	Canyon Resources
FFTG	FFTG	03	Eldorado	Eldorado	Clark	NV	-114.840	35.710	40a	Detachment-fault-related polymetallic				~1857	1907-1959	>76	3	73	neg	neg	no		Koschmann and Bergendahl, 1968; Longwell and others, 1965; Robinson, 1996	1993	1,140	2	unk	no	no	no		Robinson, 1996; AMH 1997 entry for Nelloro Corp.	Early production estimated at $2 to $5 million. Resource includes tailings at Nel property.	Nelloro Corp. - Nevada Pacific Mining
FFTG	FFTG	04	Copperstone	Moon Mountains	La Paz	AZ	-114.290	33.870	40a	Detachment-fault-related polymetallic				1980	1987-1993	5,400	14	unk	no	no	no		Cyprus-Amax 1989-1994 SEC Form 10K	1997	2,450	15	unk	unk	no	no		NM 6/9/97, p. 23	Mineral inventory	Cyprus-Amax - Royal Oak Mines

Last Updated on 7/13/98