438:
308:
430:
300:
1190:
382:
coast wanted to build more elaborate and fancy homes with amenities such as electricity and running water. However, the on-site managers didn't think it was necessary for the miners to have such high-class dwellings. But the east coast executives realized that if they offered nicer homes to the workers, the miners were more likely to stay, raise families, and be less likely to leave the area or transfer to another mining company. This strategy proved effective and helped the Quincy Mining
Company retain its status as one of the premier mining companies in the region.
398:
1892:
89:
114:
316:
72:
1903:
324:
121:
96:
421:
the largest concrete slab ever poured, containing 3200 cu. yards of concrete and over 8 tons of reinforcement material. The Number 2 Hoist House was built as a reinforced concrete structure on a scale rare for 1918, making it one of the first of its kind. The very decorative Hoist House was used as a showpiece for visiting investors.
361:
strataform orebodies in the "amygdaloid zones," the upper portions of basalt lava flows. Rock bearing small pockets of copper could be blasted out immediately and processed elsewhere at much lower cost. Amygdaloid mining proved much more productive than fissure mining, and the size and richness of the
Pewabic
335:
The Quincy Mine was founded in 1846 by the merger of the
Northwest Mining Company and the Portage Mining Company. Due to poor communication between government offices, these two speculative mining companies had purchased the same tracts of land during the mining rush of the early 1840s. The directors
381:
To attract a better class of worker, the Quincy Mining
Company built and maintained housing for the workers. Over the course of operations, the types of housing ranged from simple tents in the early days, to complete three story houses shortly before the mine's shutdown. The executives on the east
420:
with brick veneer and
Italian-tiled walls, cost over $ 370,000 in 1918 but was used for only eleven years until it ceased usage in 1929. Weighing more than 880 tons, it lifted 10 tons of ore at 36.4 miles per hour, thus saving $ 16,080 in fuel bills in its first year of operation. The hoist sat on
365:
in particular allowed the Quincy to produce profits for 53 consecutive years. The Quincy company expanded laterally along the lode by buying out adjacent properties. The company bought the
Pewabic mine in 1891, the Mesnard and the Pontiac in 1897, and the Franklin mine in 1908. This helped the
360:
mining, when the recently discovered
Pewabic amygdaloid lode was found to cross Quincy property in 1856. High-grade fissure veins contained large, pure masses of copper, but the masses could take days or even months to extract, at high cost. Amygdaloid mining consisted of extracting lower-grade
407:
When the mine ceased production in 1945, the Quincy Number 2 shaft was the world's longest mine shaft, at 9,260 feet (2.82 km or 1.75 miles) along the dip of the deposit on a 55 degree decline. (measured vertically from the shaft collar, the depth is 6,200 feet.) To raise and lower ore and
1967:
1105:
1781:
1098:
344:
lent the mine its name). While many other copper mines were founded at the same time, the Quincy Mine became the most successful of the 1840s-era mines, and was the country's leading copper-producing mine from 1863 (when it exceeded the production of the
494:
Associate
Professor William J. Gregg was installing emergency ladders in the mine shaft at the Number 2 Shaft House when he fell 225 feet and landed on an object and was declared dead at the scene by a paramedic who was lowered down to his location.
1972:
1876:
1812:
1091:
1957:
1796:
1786:
270:
and operated between 1846 and 1945, although some activities continued through the 1970s. The Quincy Mine was known as "Old
Reliable," as the Quincy Mine Company paid a dividend to investors every year from 1868 through 1920. The
1977:
1400:
1871:
1817:
1458:
1838:
1740:
1771:
1705:
1670:
1745:
1650:
1610:
1435:
1710:
1700:
1695:
1675:
1791:
1625:
1540:
1660:
1655:
1530:
1750:
1715:
1620:
1595:
453:
maintains the buildings and grounds, and provides guided tours of the Number 2 Hoist House and the 7th level of the mine during the summer. Tourists are transported to the 7th level by the
1962:
1735:
1685:
1665:
1640:
1630:
1615:
1605:
1590:
1570:
1545:
1535:
1525:
506:, which is the mine tour entrance. The adit, originally five feet high and three feet wide when it was constructed in 1892, was enlarged by Michigan Tech in the 1970s for a mining study.
1321:
1755:
1730:
1635:
1575:
1555:
1550:
1520:
1510:
1690:
1645:
1585:
1560:
1515:
1822:
1720:
1600:
1565:
1927:
1776:
1725:
1680:
1580:
1488:
1473:
1231:
1198:
1169:
502:
since the closing of the mine. The water has currently filled the mine up to the seventh level, making all lower levels inaccessible. The seventh level is drained by a large
280:
1428:
1504:
1937:
1942:
1404:
1952:
1906:
1421:
835:
389:, the mines re-opened due to increased copper demand. When the government stopped supporting copper prices after the war, the mines quickly closed for good.
141:
624:
1896:
879:
437:
1276:
1062:
1468:
1126:
847:
307:
1221:
1189:
1266:
1261:
429:
1139:
168:
1444:
1114:
982:
550:
49:
113:
1947:
1306:
1251:
1226:
413:
401:
276:
1068:
1859:
1246:
1144:
1134:
946:
520:
88:
487:
The Number 6 Shaft House (no longer standing) is often pictured in photographs as a picturesque example of shaft house architecture.
1271:
458:
454:
1216:
1179:
371:
350:
1296:
1236:
1174:
1073:
675:, Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey, pp. 563–640
465:
798:
1341:
525:
1080:", 278 photos, 9 color transparencies, 34 measured drawings, 680 data pages, 29 photo caption pages
686:
468:, which used to transport the mine’s ore to a mill, are located on site: Locomotive #1, the Thomas F. Mason, being a 32-ton
762:
1154:
1326:
299:
1083:
1932:
1864:
1843:
1361:
1241:
450:
58:
1369:
1118:
632:
515:
146:
284:
1336:
1351:
1311:
1301:
1211:
473:
397:
385:
The Quincy Mining
Company closed operations (but did not dissolve) in 1931 due to low copper prices. During
968:
1478:
1149:
711:
Larry D. Lankton and Charles K. Hyde: "Old Reliable: an Illustrated History of the Quincy Mining Company"
1483:
1463:
1291:
1286:
584:
555:
417:
341:
854:
17:
778:
1206:
1164:
375:
574:"National Register of Historic Places Inventory-Nomination: Quincy Mining Company Historic District"
457:. There are museum-style exhibits within many buildings. The mine and surrounding areas are part of
1346:
1008:
1316:
446:
367:
986:
603:
1331:
1159:
873:
477:
263:
156:
573:
1413:
315:
1968:
Industrial buildings and structures on the National Register of Historic Places in Michigan
766:
597:
824:
1057:
71:
1281:
1052:
409:
288:
222:
1921:
1256:
689:. Michigan State Housing Development Authority: Historic Sites Online. Archived from
491:
346:
337:
328:
1877:
University and college buildings listed on the National Register of Historic Places
1388:
386:
690:
759:
499:
924:
416:. The Nordberg Steam Hoist and its reinforced concrete building, built in the
356:
The mine was the first Michigan copper mine to switch from fissure mining to
183:
170:
668:
572:
Kathleen Lidfors; Mary Jo Hrenchir & Laura Feller (February 17, 1988).
331:
specimen, arborescent crystal cluster on matrix. Size: 15.9 x 9.2 x 6.0 cm.
1973:
Historic districts on the National Register of Historic Places in Michigan
1401:
National Register of Historic Places listings in Houghton County, Michigan
1022:
323:
1958:
National Register of Historic Places in Keweenaw National Historical Park
669:"Quincy Mining Company: Stamp Mills and Milling Technology, c. 1860-1931"
357:
1077:
1872:
List of jails and prisons on the National Register of Historic Places
902:
480:, and Locomotive #6, the last engine purchased for the line, being a
259:
256:
481:
469:
436:
428:
396:
336:
met and decided to merge, with significant investment coming from
322:
314:
306:
298:
1978:
National Register of Historic Places in Houghton County, Michigan
545:
498:
The shafts and stopes of the Quincy Mine have slowly filled with
779:"Michigan's Keweenaw Peninsula is a playground for snow bunnies"
503:
362:
1417:
1087:
903:"The Condensed History of the Quincy & Torch Lake Railroad"
1047:
319:
Share of the Quincy Mining Company, issued 8. February 1876
760:
National Park Service article on the Quincy Mining Company
408:
workers into this shaft, the world's largest steam-driven
793:
791:
735:
Mining methods and practice in the Michigan copper mines
433:
No 2 Hoist House (left) and Old No 2 Hoist House (right)
825:
Keweenaw National Historic Park Website for Quincy Mine
673:
Quincy Mining Company, Hancock, Houghton, MI, HAER MI-2
1322:
Saint Henry's Evangelical Lutheran Church and Cemetery
750:, US Geological Survey, Professional Paper 144, p.94.
724:, v.8, Houghton, Mich.: Horace Stevens, p.1149, 1457.
657:, US Geological Survey, Professional Paper 144, p.75.
279:; other Quincy Mine properties nearby, including the
947:"Volunteer group restores Copper Country locomotive"
605:
Accompanying 40 pages of photos, modern and historic
76:
The #2 Shafthouse (left) and the Hoist House (right)
1852:
1831:
1805:
1764:
1497:
1474:
History of the National Register of Historic Places
1451:
1383:
1360:
1197:
1170:
Quincy Mining Company Stamp Mills Historic District
1125:
1078:
Quincy Mining Company, Hancock, Houghton County, MI
349:) through 1867 (after which it was exceeded by the
241:
233:
228:
215:
207:
199:
162:
152:
137:
892:Yarborough, Ed. Personal Interview. 13 April 2007.
1505:List of U.S. National Historic Landmarks by state
687:"Calumet and Hecla/Quincy Reclaiming Sand Dredge"
1963:Historic American Engineering Record in Michigan
983:"Dollar Bay man dies after fall into mine shaft"
1897:National Register of Historic Places portal
1405:List of National Historic Landmarks in Michigan
811:Arthur Buisson, "Deep level mining problems,"
1429:
1099:
8:
1928:Copper mining companies of the United States
1150:East Hancock Neighborhood Historic District
1436:
1422:
1414:
1106:
1092:
1084:
629:National Historic Landmark summary listing
567:
565:
441:Supply Office (background) and Powderhouse
366:mine survive longer than almost all other
70:
1445:U.S. National Register of Historic Places
1277:Lake Linden Village Hall and Fire Station
625:"Quincy Mining Company Historic District"
50:U.S. National Register of Historic Places
799:"Geologist falls to death in mine shaft"
737:, US Bureau of Mines, Bulletin 306, p.3.
619:
617:
392:
59:U.S. National Historic Landmark District
1938:National Historic Landmarks in Michigan
1375:Quincy Mining Company Historic District
631:. National Park Service. Archived from
537:
273:Quincy Mining Company Historic District
18:Quincy Mining Company Historic District
1943:Underground mines in the United States
1267:Keweenaw Waterway Upper Entrance Light
1262:Keweenaw Waterway Lower Entrance Light
878:: CS1 maint: archived copy as title (
871:
746:B. S. Butler and W. S. Burbank (1929)
653:B. S. Butler and W. S. Burbank (1929)
593:
582:
546:"National Register Information System"
31:
1140:Calumet and Hecla Industrial District
949:. Jesse Wiederhold, TV6, May 18, 2021
7:
1953:Museums in Houghton County, Michigan
1115:National Register of Historic Places
1074:Historic American Engineering Record
1069:The Quincy Mining Company Collection
551:National Register of Historic Places
412:was built in 1918 and housed in the
370:copper mining companies, except the
1307:Quincy Mine No. 2 Shaft Hoist House
1252:Jacobsville Finnish Lutheran Church
393:The mine's engineering achievements
291:are also historically significant.
277:National Historic Landmark District
120:
95:
1860:National Historic Preservation Act
1247:J. Vivian Jr. and Company Building
1222:County Road C117–Pike River Bridge
1145:Calumet Downtown Historic District
1135:Big Traverse Bay Historic District
1063:Current Pictures of the Mine Ruins
925:"Quincy & Torch Lake Railroad"
905:. Kevin E. Musser, CopperRange.org
836:A Sightseer's Guide to Engineering
521:Copper Country Strike of 1913-1914
25:
1272:Keweenaw National Historical Park
1058:Photo of the Number 6 Shaft House
1053:Photo of the Number 2 Shaft House
459:Keweenaw National Historical Park
455:Quincy and Torch Lake Cog Railway
445:The Quincy Mine is now a popular
281:Quincy Mining Company Stamp Mills
1902:
1901:
1890:
1217:College Club House and Gymnasium
1188:
1180:Shelden Avenue Historic District
484:Consolidation acquired in 1913.
466:Quincy & Torch Lake Railroad
372:Calumet and Hecla Mining Company
119:
112:
94:
87:
1297:Old Hancock Central High School
1237:Hancock Town Hall and Fire Hall
1175:Quincy Street Historic District
748:The copper deposits of Michigan
655:The copper deposits of Michigan
1813:Federated States of Micronesia
1459:Architectural style categories
1342:South Range Community Building
815:, Nov. 1951, v.74 n.11 p.C 60.
783:The Milwaukee Journal Sentinel
526:Underground mining (hard rock)
303:Original No 2 Shaft Rock House
217:
1:
1155:Lake Linden Historic District
1048:Quincy Mine Hoist Association
451:Quincy Mine Hoist Association
128:Show map of the United States
1327:Saint Ignatius Loyola Church
1165:Painesdale Historic District
418:Georgian architectural style
266:. The mine was owned by the
29:United States historic place
1362:National Historic Landmarks
1232:First Congregational Church
1023:"Entrance to the East Adit"
765:September 29, 2006, at the
414:Quincy Number 2 Hoist House
1994:
1948:Mining museums in Michigan
1865:Historic Preservation Fund
1844:American Legation, Morocco
1242:Houghton County Courthouse
1065:At Copper Country Explorer
1885:
1806:Lists by associated state
1395:
1370:Calumet Historic District
1186:
1160:Laurium Historic District
1119:Houghton County, Michigan
720:Horace J. Stevens (1909)
516:Copper mining in Michigan
216:NRHP reference
147:Houghton County, Michigan
81:
69:
65:
56:
47:
38:
34:
1787:Northern Mariana Islands
579:. National Park Service.
449:tourist attraction. The
285:Quincy Dredge Number Two
203:779 acres (3.15 km)
1352:Thomas H. Hoatson House
1312:Ransom B. Shelden House
1302:Old Main, Suomi College
1212:Chassell School Complex
1076:(HAER) No. MI-2, "
1009:"Accident details told"
969:"Man dies in mine fall"
813:Canadian Mining Journal
474:Brooks Locomotive Works
464:Two locomotives of the
402:Quincy Mine Hoist House
255:is an extensive set of
1782:Minor Outlying Islands
1765:Lists by insular areas
1479:Keeper of the Register
667:Charles F. O'Connell,
592:Cite journal requires
442:
434:
404:
332:
320:
312:
304:
1484:National Park Service
1464:Contributing property
1292:Joseph Bosch Building
1287:John J. Michels House
556:National Park Service
440:
432:
400:
342:Quincy, Massachusetts
326:
318:
311:No 2 Shaft Rock House
310:
302:
268:Quincy Mining Company
184:47.13833°N 88.56972°W
40:Quincy Mining Company
1839:District of Columbia
1207:Calumet Fire Station
989:on December 11, 2008
490:On December 6, 2008
376:Copper Range Company
242:Designated NHLD
103:Show map of Michigan
1347:The Calumet Theatre
1337:Smith–Dengler House
1199:Historic properties
635:on October 29, 2011
472:Mogul built by the
295:Lifespan: 1846-1945
275:is a United States
189:47.13833; -88.56972
180: /
1317:Redridge Steel Dam
1127:Historic districts
733:W.R. Crane (1929)
443:
435:
405:
333:
321:
313:
305:
1933:Mines in Michigan
1915:
1914:
1469:Historic district
1411:
1410:
1332:Shelden-Dee Block
558:. March 13, 2009.
478:Dunkirk, New York
351:Calumet and Hecla
264:Hancock, Michigan
249:
248:
245:February 10, 1989
237:February 10, 1989
229:Significant dates
211:Quincy Mining Co.
157:Hancock, Michigan
142:Franklin Township
42:Historic District
16:(Redirected from
1985:
1905:
1904:
1895:
1894:
1893:
1818:Marshall Islands
1438:
1431:
1424:
1415:
1192:
1108:
1101:
1094:
1085:
1035:
1034:
1032:
1030:
1019:
1013:
1012:
1005:
999:
998:
996:
994:
985:. Archived from
979:
973:
972:
965:
959:
958:
956:
954:
943:
937:
936:
934:
932:
921:
915:
914:
912:
910:
899:
893:
890:
884:
883:
877:
869:
867:
865:
860:on July 17, 2011
859:
853:. Archived from
852:
844:
838:
833:
827:
822:
816:
809:
803:
802:
795:
786:
776:
770:
757:
751:
744:
738:
731:
725:
718:
712:
709:
703:
702:
700:
698:
683:
677:
676:
664:
658:
651:
645:
644:
642:
640:
621:
612:
611:
601:
595:
590:
588:
580:
578:
569:
560:
559:
542:
219:
195:
194:
192:
191:
190:
185:
181:
178:
177:
176:
173:
129:
123:
122:
116:
104:
98:
97:
91:
74:
32:
21:
1993:
1992:
1988:
1987:
1986:
1984:
1983:
1982:
1918:
1917:
1916:
1911:
1891:
1889:
1881:
1848:
1827:
1801:
1760:
1493:
1447:
1442:
1412:
1407:
1391:
1384:Former listings
1379:
1356:
1193:
1184:
1121:
1112:
1044:
1039:
1038:
1028:
1026:
1021:
1020:
1016:
1007:
1006:
1002:
992:
990:
981:
980:
976:
967:
966:
962:
952:
950:
945:
944:
940:
930:
928:
923:
922:
918:
908:
906:
901:
900:
896:
891:
887:
870:
863:
861:
857:
850:
848:"Archived copy"
846:
845:
841:
834:
830:
823:
819:
810:
806:
797:
796:
789:
777:
773:
767:Wayback Machine
758:
754:
745:
741:
732:
728:
722:Copper Handbook
719:
715:
710:
706:
696:
694:
693:on May 24, 2012
685:
684:
680:
666:
665:
661:
652:
648:
638:
636:
623:
622:
615:
609:
591:
581:
576:
571:
570:
563:
544:
543:
539:
534:
512:
427:
395:
297:
188:
186:
182:
179:
174:
171:
169:
167:
166:
145:
133:
132:
131:
130:
127:
126:
125:
124:
107:
106:
105:
102:
101:
100:
99:
77:
61:
52:
43:
41:
30:
23:
22:
15:
12:
11:
5:
1991:
1989:
1981:
1980:
1975:
1970:
1965:
1960:
1955:
1950:
1945:
1940:
1935:
1930:
1920:
1919:
1913:
1912:
1910:
1909:
1899:
1886:
1883:
1882:
1880:
1879:
1874:
1869:
1868:
1867:
1856:
1854:
1850:
1849:
1847:
1846:
1841:
1835:
1833:
1829:
1828:
1826:
1825:
1820:
1815:
1809:
1807:
1803:
1802:
1800:
1799:
1797:Virgin Islands
1794:
1789:
1784:
1779:
1774:
1772:American Samoa
1768:
1766:
1762:
1761:
1759:
1758:
1753:
1748:
1743:
1738:
1733:
1728:
1723:
1718:
1713:
1708:
1706:South Carolina
1703:
1698:
1693:
1688:
1683:
1678:
1673:
1671:North Carolina
1668:
1663:
1658:
1653:
1648:
1643:
1638:
1633:
1628:
1623:
1618:
1613:
1608:
1603:
1598:
1593:
1588:
1583:
1578:
1573:
1568:
1563:
1558:
1553:
1548:
1543:
1538:
1533:
1528:
1523:
1518:
1513:
1508:
1501:
1499:
1498:Lists by state
1495:
1494:
1492:
1491:
1489:Property types
1486:
1481:
1476:
1471:
1466:
1461:
1455:
1453:
1449:
1448:
1443:
1441:
1440:
1433:
1426:
1418:
1409:
1408:
1396:
1393:
1392:
1387:
1385:
1381:
1380:
1378:
1377:
1372:
1366:
1364:
1358:
1357:
1355:
1354:
1349:
1344:
1339:
1334:
1329:
1324:
1319:
1314:
1309:
1304:
1299:
1294:
1289:
1284:
1282:Lieblein House
1279:
1274:
1269:
1264:
1259:
1254:
1249:
1244:
1239:
1234:
1229:
1227:Douglass House
1224:
1219:
1214:
1209:
1203:
1201:
1195:
1194:
1187:
1185:
1183:
1182:
1177:
1172:
1167:
1162:
1157:
1152:
1147:
1142:
1137:
1131:
1129:
1123:
1122:
1113:
1111:
1110:
1103:
1096:
1088:
1082:
1081:
1071:
1066:
1060:
1055:
1050:
1043:
1042:External links
1040:
1037:
1036:
1014:
1000:
974:
960:
938:
916:
894:
885:
839:
828:
817:
804:
787:
771:
752:
739:
726:
713:
704:
678:
659:
646:
613:
594:|journal=
561:
536:
535:
533:
530:
529:
528:
523:
518:
511:
508:
426:
425:The Mine Today
423:
394:
391:
296:
293:
289:Quincy Smelter
247:
246:
243:
239:
238:
235:
231:
230:
226:
225:
220:
213:
212:
209:
205:
204:
201:
197:
196:
164:
160:
159:
154:
150:
149:
139:
135:
134:
118:
117:
111:
110:
109:
108:
93:
92:
86:
85:
84:
83:
82:
79:
78:
75:
67:
66:
63:
62:
57:
54:
53:
48:
45:
44:
39:
36:
35:
28:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1990:
1979:
1976:
1974:
1971:
1969:
1966:
1964:
1961:
1959:
1956:
1954:
1951:
1949:
1946:
1944:
1941:
1939:
1936:
1934:
1931:
1929:
1926:
1925:
1923:
1908:
1900:
1898:
1888:
1887:
1884:
1878:
1875:
1873:
1870:
1866:
1863:
1862:
1861:
1858:
1857:
1855:
1851:
1845:
1842:
1840:
1837:
1836:
1834:
1830:
1824:
1821:
1819:
1816:
1814:
1811:
1810:
1808:
1804:
1798:
1795:
1793:
1790:
1788:
1785:
1783:
1780:
1778:
1775:
1773:
1770:
1769:
1767:
1763:
1757:
1754:
1752:
1749:
1747:
1746:West Virginia
1744:
1742:
1739:
1737:
1734:
1732:
1729:
1727:
1724:
1722:
1719:
1717:
1714:
1712:
1709:
1707:
1704:
1702:
1699:
1697:
1694:
1692:
1689:
1687:
1684:
1682:
1679:
1677:
1674:
1672:
1669:
1667:
1664:
1662:
1659:
1657:
1654:
1652:
1651:New Hampshire
1649:
1647:
1644:
1642:
1639:
1637:
1634:
1632:
1629:
1627:
1624:
1622:
1619:
1617:
1614:
1612:
1611:Massachusetts
1609:
1607:
1604:
1602:
1599:
1597:
1594:
1592:
1589:
1587:
1584:
1582:
1579:
1577:
1574:
1572:
1569:
1567:
1564:
1562:
1559:
1557:
1554:
1552:
1549:
1547:
1544:
1542:
1539:
1537:
1534:
1532:
1529:
1527:
1524:
1522:
1519:
1517:
1514:
1512:
1509:
1506:
1503:
1502:
1500:
1496:
1490:
1487:
1485:
1482:
1480:
1477:
1475:
1472:
1470:
1467:
1465:
1462:
1460:
1457:
1456:
1454:
1450:
1446:
1439:
1434:
1432:
1427:
1425:
1420:
1419:
1416:
1406:
1402:
1399:
1394:
1390:
1386:
1382:
1376:
1373:
1371:
1368:
1367:
1365:
1363:
1359:
1353:
1350:
1348:
1345:
1343:
1340:
1338:
1335:
1333:
1330:
1328:
1325:
1323:
1320:
1318:
1315:
1313:
1310:
1308:
1305:
1303:
1300:
1298:
1295:
1293:
1290:
1288:
1285:
1283:
1280:
1278:
1275:
1273:
1270:
1268:
1265:
1263:
1260:
1258:
1257:Kaleva Temple
1255:
1253:
1250:
1248:
1245:
1243:
1240:
1238:
1235:
1233:
1230:
1228:
1225:
1223:
1220:
1218:
1215:
1213:
1210:
1208:
1205:
1204:
1202:
1200:
1196:
1191:
1181:
1178:
1176:
1173:
1171:
1168:
1166:
1163:
1161:
1158:
1156:
1153:
1151:
1148:
1146:
1143:
1141:
1138:
1136:
1133:
1132:
1130:
1128:
1124:
1120:
1116:
1109:
1104:
1102:
1097:
1095:
1090:
1089:
1086:
1079:
1075:
1072:
1070:
1067:
1064:
1061:
1059:
1056:
1054:
1051:
1049:
1046:
1045:
1041:
1024:
1018:
1015:
1010:
1004:
1001:
988:
984:
978:
975:
970:
964:
961:
948:
942:
939:
926:
920:
917:
904:
898:
895:
889:
886:
881:
875:
864:September 22,
856:
849:
843:
840:
837:
832:
829:
826:
821:
818:
814:
808:
805:
800:
794:
792:
788:
784:
780:
775:
772:
768:
764:
761:
756:
753:
749:
743:
740:
736:
730:
727:
723:
717:
714:
708:
705:
692:
688:
682:
679:
674:
670:
663:
660:
656:
650:
647:
634:
630:
626:
620:
618:
614:
607:
606:
599:
586:
575:
568:
566:
562:
557:
553:
552:
547:
541:
538:
531:
527:
524:
522:
519:
517:
514:
513:
509:
507:
505:
501:
496:
493:
492:Michigan Tech
488:
485:
483:
479:
475:
471:
467:
462:
460:
456:
452:
448:
439:
431:
424:
422:
419:
415:
411:
403:
399:
390:
388:
383:
379:
377:
373:
369:
364:
359:
354:
352:
348:
347:Minesota Mine
343:
340:(the town of
339:
338:Massachusetts
330:
329:native copper
325:
317:
309:
301:
294:
292:
290:
286:
282:
278:
274:
269:
265:
262:located near
261:
258:
254:
244:
240:
236:
234:Added to NRHP
232:
227:
224:
221:
214:
210:
206:
202:
198:
193:
165:
161:
158:
155:
151:
148:
143:
140:
136:
115:
90:
80:
73:
68:
64:
60:
55:
51:
46:
37:
33:
27:
19:
1711:South Dakota
1701:Rhode Island
1696:Pennsylvania
1676:North Dakota
1397:
1389:Italian Hall
1374:
1027:. Retrieved
1017:
1003:
991:. Retrieved
987:the original
977:
963:
951:. Retrieved
941:
929:. Retrieved
927:. Trains.com
919:
907:. Retrieved
897:
888:
862:. Retrieved
855:the original
842:
831:
820:
812:
807:
782:
774:
755:
747:
742:
734:
729:
721:
716:
707:
697:November 20,
695:. Retrieved
691:the original
681:
672:
662:
654:
649:
637:. Retrieved
633:the original
628:
610:(32 KB)
604:
585:cite journal
549:
540:
497:
489:
486:
463:
444:
406:
387:World War II
384:
380:
355:
334:
327:Quincy Mine
272:
267:
252:
250:
153:Nearest city
26:
1832:Other areas
1792:Puerto Rico
1626:Mississippi
1541:Connecticut
953:October 17,
931:October 17,
909:October 17,
500:groundwater
253:Quincy Mine
187: /
163:Coordinates
1922:Categories
1741:Washington
1661:New Mexico
1656:New Jersey
1531:California
532:References
410:mine hoist
358:amygdaloid
287:, and the
175:88°34′11″W
1751:Wisconsin
1716:Tennessee
1621:Minnesota
1596:Louisiana
1398:See also:
1029:April 29,
993:March 30,
208:Architect
172:47°8′18″N
1907:Category
1736:Virginia
1686:Oklahoma
1666:New York
1641:Nebraska
1631:Missouri
1616:Michigan
1606:Maryland
1591:Kentucky
1571:Illinois
1546:Delaware
1536:Colorado
1526:Arkansas
1025:. Mindat
874:cite web
763:Archived
639:June 27,
510:See also
447:Keweenaw
374:and the
368:Keweenaw
223:89001095
138:Location
1853:Related
1756:Wyoming
1731:Vermont
1636:Montana
1576:Indiana
1556:Georgia
1551:Florida
1521:Arizona
1511:Alabama
1691:Oregon
1646:Nevada
1586:Kansas
1561:Hawaii
1516:Alaska
1452:Topics
785:(HTML)
608:
283:, the
257:copper
1823:Palau
1721:Texas
1601:Maine
1566:Idaho
858:(PDF)
851:(PDF)
769:(PDF)
577:(pdf)
482:2-8-0
470:2-6-0
260:mines
1777:Guam
1726:Utah
1681:Ohio
1581:Iowa
1403:and
1031:2012
995:2012
955:2021
933:2021
911:2021
880:link
866:2008
699:2010
641:2008
602:and
598:help
504:adit
363:lode
251:The
200:Area
1117:in
476:of
353:).
218:No.
1924::
876:}}
872:{{
790:^
781:,
671:,
627:.
616:^
589::
587:}}
583:{{
564:^
554:.
548:.
461:.
378:.
1507::
1437:e
1430:t
1423:v
1107:e
1100:t
1093:v
1033:.
1011:.
997:.
971:.
957:.
935:.
913:.
882:)
868:.
801:.
701:.
643:.
600:)
596:(
144:,
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.