427:
297:
419:
289:
1179:
371:
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.
387:
1881:
78:
103:
305:
61:
1892:
313:
110:
85:
410:
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.
350:
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
324:
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
370:
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
409:
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
354:
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
349:
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
396:
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
1956:
1094:
1770:
1087:
333:
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
483:
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.
1961:
1865:
1801:
1080:
1946:
1785:
1775:
259:
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
1966:
1389:
1860:
1806:
1447:
1827:
1729:
1760:
1694:
1659:
1734:
1639:
1599:
1424:
1699:
1689:
1684:
1664:
1780:
1614:
1529:
1649:
1644:
1519:
1739:
1704:
1609:
1584:
442:
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
1951:
1724:
1674:
1654:
1629:
1619:
1604:
1594:
1579:
1559:
1534:
1524:
1514:
495:, 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.
1310:
1744:
1719:
1624:
1564:
1544:
1539:
1509:
1499:
1679:
1634:
1574:
1549:
1504:
1811:
1709:
1589:
1554:
1916:
1765:
1714:
1669:
1569:
1477:
1462:
1220:
1187:
1158:
491:
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
269:
1417:
1493:
1926:
1931:
1393:
1941:
1895:
1410:
824:
378:, 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.
130:
613:
1885:
868:
426:
1265:
1051:
1457:
1115:
836:
296:
1210:
1178:
1255:
1250:
418:
1128:
157:
1433:
1103:
971:
539:
38:
102:
1936:
1295:
1240:
1215:
402:
390:
265:
1057:
1848:
1235:
1133:
1123:
935:
509:
77:
476:
The Number 6 Shaft House (no longer standing) is often pictured in photographs as a picturesque example of shaft house architecture.
1260:
447:
443:
1205:
1168:
360:
339:
1285:
1225:
1163:
1062:
664:, Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey, pp. 563–640
454:
787:
1330:
514:
1069:", 278 photos, 9 color transparencies, 34 measured drawings, 680 data pages, 29 photo caption pages
675:
457:, 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
751:
1143:
1315:
288:
1072:
1921:
1853:
1832:
1350:
1230:
439:
47:
1358:
1107:
621:
504:
135:
273:
1325:
1340:
1300:
1290:
1200:
462:
386:
374:
The Quincy Mining
Company closed operations (but did not dissolve) in 1931 due to low copper prices. During
957:
1467:
1138:
700:
Larry D. Lankton and Charles K. Hyde: "Old Reliable: an Illustrated History of the Quincy Mining Company"
1472:
1452:
1280:
1275:
573:
544:
406:
330:
843:
767:
1195:
1153:
364:
563:"National Register of Historic Places Inventory-Nomination: Quincy Mining Company Historic District"
446:. There are museum-style exhibits within many buildings. The mine and surrounding areas are part of
1335:
997:
1305:
435:
356:
975:
592:
1320:
1148:
862:
466:
252:
145:
562:
1402:
304:
1957:
Industrial buildings and structures on the National Register of Historic Places in Michigan
755:
586:
813:
1046:
60:
1270:
1041:
398:
277:
211:
1910:
1245:
678:. Michigan State Housing Development Authority: Historic Sites Online. Archived from
480:
335:
326:
317:
1866:
University and college buildings listed on the National Register of Historic Places
1377:
375:
679:
748:
488:
913:
405:. The Nordberg Steam Hoist and its reinforced concrete building, built in the
345:
The mine was the first Michigan copper mine to switch from fissure mining to
172:
159:
657:
561:
Kathleen Lidfors; Mary Jo Hrenchir & Laura Feller (February 17, 1988).
320:
specimen, arborescent crystal cluster on matrix. Size: 15.9 x 9.2 x 6.0 cm.
1962:
Historic districts on the National Register of Historic Places in Michigan
1390:
National Register of Historic Places listings in Houghton County, Michigan
1011:
312:
1947:
National Register of Historic Places in Keweenaw National Historical Park
658:"Quincy Mining Company: Stamp Mills and Milling Technology, c. 1860-1931"
346:
1066:
1861:
List of jails and prisons on the National Register of Historic Places
891:
469:, and Locomotive #6, the last engine purchased for the line, being a
248:
245:
470:
458:
425:
417:
385:
325:
met and decided to merge, with significant investment coming from
311:
303:
295:
287:
1967:
National Register of Historic Places in Houghton County, Michigan
534:
487:
The shafts and stopes of the Quincy Mine have slowly filled with
768:"Michigan's Keweenaw Peninsula is a playground for snow bunnies"
492:
351:
1406:
1076:
892:"The Condensed History of the Quincy & Torch Lake Railroad"
1036:
308:
Share of the Quincy Mining Company, issued 8. February 1876
749:
National Park Service article on the Quincy Mining Company
397:
workers into this shaft, the world's largest steam-driven
782:
780:
724:
Mining methods and practice in the Michigan copper mines
422:
No 2 Hoist House (left) and Old No 2 Hoist House (right)
814:
Keweenaw National Historic Park Website for Quincy Mine
662:
Quincy Mining Company, Hancock, Houghton, MI, HAER MI-2
1311:
Saint Henry's Evangelical Lutheran Church and Cemetery
739:, US Geological Survey, Professional Paper 144, p.94.
713:, v.8, Houghton, Mich.: Horace Stevens, p.1149, 1457.
646:, US Geological Survey, Professional Paper 144, p.75.
268:; other Quincy Mine properties nearby, including the
936:"Volunteer group restores Copper Country locomotive"
594:
Accompanying 40 pages of photos, modern and historic
65:
The #2 Shafthouse (left) and the Hoist House (right)
1841:
1820:
1794:
1753:
1486:
1463:
History of the National Register of Historic Places
1440:
1372:
1349:
1186:
1159:
Quincy Mining Company Stamp Mills Historic District
1114:
1067:
Quincy Mining Company, Hancock, Houghton County, MI
338:) through 1867 (after which it was exceeded by the
230:
222:
217:
204:
196:
188:
151:
141:
126:
881:Yarborough, Ed. Personal Interview. 13 April 2007.
1494:List of U.S. National Historic Landmarks by state
676:"Calumet and Hecla/Quincy Reclaiming Sand Dredge"
1952:Historic American Engineering Record in Michigan
972:"Dollar Bay man dies after fall into mine shaft"
1886:National Register of Historic Places portal
1394:List of National Historic Landmarks in Michigan
800:Arthur Buisson, "Deep level mining problems,"
1418:
1088:
8:
1917:Copper mining companies of the United States
1139:East Hancock Neighborhood Historic District
1425:
1411:
1403:
1095:
1081:
1073:
618:National Historic Landmark summary listing
556:
554:
430:Supply Office (background) and Powderhouse
355:mine survive longer than almost all other
59:
1434:U.S. National Register of Historic Places
1266:Lake Linden Village Hall and Fire Station
614:"Quincy Mining Company Historic District"
39:U.S. National Register of Historic Places
788:"Geologist falls to death in mine shaft"
726:, US Bureau of Mines, Bulletin 306, p.3.
608:
606:
381:
48:U.S. National Historic Landmark District
1927:National Historic Landmarks in Michigan
1364:Quincy Mining Company Historic District
620:. National Park Service. Archived from
526:
262:Quincy Mining Company Historic District
1932:Underground mines in the United States
1256:Keweenaw Waterway Upper Entrance Light
1251:Keweenaw Waterway Lower Entrance Light
867:: CS1 maint: archived copy as title (
860:
735:B. S. Butler and W. S. Burbank (1929)
642:B. S. Butler and W. S. Burbank (1929)
582:
571:
535:"National Register Information System"
20:
1129:Calumet and Hecla Industrial District
938:. Jesse Wiederhold, TV6, May 18, 2021
7:
1942:Museums in Houghton County, Michigan
1104:National Register of Historic Places
1063:Historic American Engineering Record
1058:The Quincy Mining Company Collection
540:National Register of Historic Places
401:was built in 1918 and housed in the
359:copper mining companies, except the
1296:Quincy Mine No. 2 Shaft Hoist House
1241:Jacobsville Finnish Lutheran Church
382:The mine's engineering achievements
280:are also historically significant.
266:National Historic Landmark District
109:
84:
1849:National Historic Preservation Act
1236:J. Vivian Jr. and Company Building
1211:County Road C117–Pike River Bridge
1134:Calumet Downtown Historic District
1124:Big Traverse Bay Historic District
1052:Current Pictures of the Mine Ruins
914:"Quincy & Torch Lake Railroad"
894:. Kevin E. Musser, CopperRange.org
825:A Sightseer's Guide to Engineering
510:Copper Country Strike of 1913-1914
14:
1261:Keweenaw National Historical Park
1047:Photo of the Number 6 Shaft House
1042:Photo of the Number 2 Shaft House
448:Keweenaw National Historical Park
444:Quincy and Torch Lake Cog Railway
434:The Quincy Mine is now a popular
270:Quincy Mining Company Stamp Mills
1891:
1890:
1879:
1206:College Club House and Gymnasium
1177:
1169:Shelden Avenue Historic District
473:Consolidation acquired in 1913.
455:Quincy & Torch Lake Railroad
361:Calumet and Hecla Mining Company
108:
101:
83:
76:
1286:Old Hancock Central High School
1226:Hancock Town Hall and Fire Hall
1164:Quincy Street Historic District
737:The copper deposits of Michigan
644:The copper deposits of Michigan
1802:Federated States of Micronesia
1448:Architectural style categories
1331:South Range Community Building
804:, Nov. 1951, v.74 n.11 p.C 60.
772:The Milwaukee Journal Sentinel
515:Underground mining (hard rock)
292:Original No 2 Shaft Rock House
206:
1:
1144:Lake Linden Historic District
1037:Quincy Mine Hoist Association
440:Quincy Mine Hoist Association
117:Show map of the United States
1316:Saint Ignatius Loyola Church
1154:Painesdale Historic District
407:Georgian architectural style
255:. The mine was owned by the
18:United States historic place
1351:National Historic Landmarks
1221:First Congregational Church
1012:"Entrance to the East Adit"
754:September 29, 2006, at the
403:Quincy Number 2 Hoist House
1983:
1937:Mining museums in Michigan
1854:Historic Preservation Fund
1833:American Legation, Morocco
1231:Houghton County Courthouse
1054:At Copper Country Explorer
1874:
1795:Lists by associated state
1384:
1359:Calumet Historic District
1175:
1149:Laurium Historic District
1108:Houghton County, Michigan
709:Horace J. Stevens (1909)
505:Copper mining in Michigan
205:NRHP reference
136:Houghton County, Michigan
70:
58:
54:
45:
36:
27:
23:
1776:Northern Mariana Islands
568:. National Park Service.
438:tourist attraction. The
274:Quincy Dredge Number Two
192:779 acres (3.15 km)
1341:Thomas H. Hoatson House
1301:Ransom B. Shelden House
1291:Old Main, Suomi College
1201:Chassell School Complex
1065:(HAER) No. MI-2, "
998:"Accident details told"
958:"Man dies in mine fall"
802:Canadian Mining Journal
463:Brooks Locomotive Works
453:Two locomotives of the
391:Quincy Mine Hoist House
244:is an extensive set of
1771:Minor Outlying Islands
1754:Lists by insular areas
1468:Keeper of the Register
656:Charles F. O'Connell,
581:Cite journal requires
431:
423:
393:
321:
309:
301:
293:
1473:National Park Service
1453:Contributing property
1281:Joseph Bosch Building
1276:John J. Michels House
545:National Park Service
429:
421:
389:
331:Quincy, Massachusetts
315:
307:
300:No 2 Shaft Rock House
299:
291:
257:Quincy Mining Company
173:47.13833°N 88.56972°W
29:Quincy Mining Company
1828:District of Columbia
1196:Calumet Fire Station
978:on December 11, 2008
479:On December 6, 2008
365:Copper Range Company
231:Designated NHLD
92:Show map of Michigan
1336:The Calumet Theatre
1326:Smith–Dengler House
1188:Historic properties
624:on October 29, 2011
461:Mogul built by the
284:Lifespan: 1846-1945
264:is a United States
178:47.13833; -88.56972
169: /
1306:Redridge Steel Dam
1116:Historic districts
722:W.R. Crane (1929)
432:
424:
394:
322:
310:
302:
294:
1922:Mines in Michigan
1904:
1903:
1458:Historic district
1400:
1399:
1321:Shelden-Dee Block
547:. March 13, 2009.
467:Dunkirk, New York
340:Calumet and Hecla
253:Hancock, Michigan
238:
237:
234:February 10, 1989
226:February 10, 1989
218:Significant dates
200:Quincy Mining Co.
146:Hancock, Michigan
131:Franklin Township
31:Historic District
1974:
1894:
1893:
1884:
1883:
1882:
1807:Marshall Islands
1427:
1420:
1413:
1404:
1181:
1097:
1090:
1083:
1074:
1024:
1023:
1021:
1019:
1008:
1002:
1001:
994:
988:
987:
985:
983:
974:. Archived from
968:
962:
961:
954:
948:
947:
945:
943:
932:
926:
925:
923:
921:
910:
904:
903:
901:
899:
888:
882:
879:
873:
872:
866:
858:
856:
854:
849:on July 17, 2011
848:
842:. Archived from
841:
833:
827:
822:
816:
811:
805:
798:
792:
791:
784:
775:
765:
759:
746:
740:
733:
727:
720:
714:
707:
701:
698:
692:
691:
689:
687:
672:
666:
665:
653:
647:
640:
634:
633:
631:
629:
610:
601:
600:
590:
584:
579:
577:
569:
567:
558:
549:
548:
531:
208:
184:
183:
181:
180:
179:
174:
170:
167:
166:
165:
162:
118:
112:
111:
105:
93:
87:
86:
80:
63:
21:
1982:
1981:
1977:
1976:
1975:
1973:
1972:
1971:
1907:
1906:
1905:
1900:
1880:
1878:
1870:
1837:
1816:
1790:
1749:
1482:
1436:
1431:
1401:
1396:
1380:
1373:Former listings
1368:
1345:
1182:
1173:
1110:
1101:
1033:
1028:
1027:
1017:
1015:
1010:
1009:
1005:
996:
995:
991:
981:
979:
970:
969:
965:
956:
955:
951:
941:
939:
934:
933:
929:
919:
917:
912:
911:
907:
897:
895:
890:
889:
885:
880:
876:
859:
852:
850:
846:
839:
837:"Archived copy"
835:
834:
830:
823:
819:
812:
808:
799:
795:
786:
785:
778:
766:
762:
756:Wayback Machine
747:
743:
734:
730:
721:
717:
711:Copper Handbook
708:
704:
699:
695:
685:
683:
682:on May 24, 2012
674:
673:
669:
655:
654:
650:
641:
637:
627:
625:
612:
611:
604:
598:
580:
570:
565:
560:
559:
552:
533:
532:
528:
523:
501:
416:
384:
286:
177:
175:
171:
168:
163:
160:
158:
156:
155:
134:
122:
121:
120:
119:
116:
115:
114:
113:
96:
95:
94:
91:
90:
89:
88:
66:
50:
41:
32:
30:
19:
12:
11:
5:
1980:
1978:
1970:
1969:
1964:
1959:
1954:
1949:
1944:
1939:
1934:
1929:
1924:
1919:
1909:
1908:
1902:
1901:
1899:
1898:
1888:
1875:
1872:
1871:
1869:
1868:
1863:
1858:
1857:
1856:
1845:
1843:
1839:
1838:
1836:
1835:
1830:
1824:
1822:
1818:
1817:
1815:
1814:
1809:
1804:
1798:
1796:
1792:
1791:
1789:
1788:
1786:Virgin Islands
1783:
1778:
1773:
1768:
1763:
1761:American Samoa
1757:
1755:
1751:
1750:
1748:
1747:
1742:
1737:
1732:
1727:
1722:
1717:
1712:
1707:
1702:
1697:
1695:South Carolina
1692:
1687:
1682:
1677:
1672:
1667:
1662:
1660:North Carolina
1657:
1652:
1647:
1642:
1637:
1632:
1627:
1622:
1617:
1612:
1607:
1602:
1597:
1592:
1587:
1582:
1577:
1572:
1567:
1562:
1557:
1552:
1547:
1542:
1537:
1532:
1527:
1522:
1517:
1512:
1507:
1502:
1497:
1490:
1488:
1487:Lists by state
1484:
1483:
1481:
1480:
1478:Property types
1475:
1470:
1465:
1460:
1455:
1450:
1444:
1442:
1438:
1437:
1432:
1430:
1429:
1422:
1415:
1407:
1398:
1397:
1385:
1382:
1381:
1376:
1374:
1370:
1369:
1367:
1366:
1361:
1355:
1353:
1347:
1346:
1344:
1343:
1338:
1333:
1328:
1323:
1318:
1313:
1308:
1303:
1298:
1293:
1288:
1283:
1278:
1273:
1271:Lieblein House
1268:
1263:
1258:
1253:
1248:
1243:
1238:
1233:
1228:
1223:
1218:
1216:Douglass House
1213:
1208:
1203:
1198:
1192:
1190:
1184:
1183:
1176:
1174:
1172:
1171:
1166:
1161:
1156:
1151:
1146:
1141:
1136:
1131:
1126:
1120:
1118:
1112:
1111:
1102:
1100:
1099:
1092:
1085:
1077:
1071:
1070:
1060:
1055:
1049:
1044:
1039:
1032:
1031:External links
1029:
1026:
1025:
1003:
989:
963:
949:
927:
905:
883:
874:
828:
817:
806:
793:
776:
760:
741:
728:
715:
702:
693:
667:
648:
635:
602:
583:|journal=
550:
525:
524:
522:
519:
518:
517:
512:
507:
500:
497:
415:
414:The Mine Today
412:
383:
380:
285:
282:
278:Quincy Smelter
236:
235:
232:
228:
227:
224:
220:
219:
215:
214:
209:
202:
201:
198:
194:
193:
190:
186:
185:
153:
149:
148:
143:
139:
138:
128:
124:
123:
107:
106:
100:
99:
98:
97:
82:
81:
75:
74:
73:
72:
71:
68:
67:
64:
56:
55:
52:
51:
46:
43:
42:
37:
34:
33:
28:
25:
24:
17:
13:
10:
9:
6:
4:
3:
2:
1979:
1968:
1965:
1963:
1960:
1958:
1955:
1953:
1950:
1948:
1945:
1943:
1940:
1938:
1935:
1933:
1930:
1928:
1925:
1923:
1920:
1918:
1915:
1914:
1912:
1897:
1889:
1887:
1877:
1876:
1873:
1867:
1864:
1862:
1859:
1855:
1852:
1851:
1850:
1847:
1846:
1844:
1840:
1834:
1831:
1829:
1826:
1825:
1823:
1819:
1813:
1810:
1808:
1805:
1803:
1800:
1799:
1797:
1793:
1787:
1784:
1782:
1779:
1777:
1774:
1772:
1769:
1767:
1764:
1762:
1759:
1758:
1756:
1752:
1746:
1743:
1741:
1738:
1736:
1735:West Virginia
1733:
1731:
1728:
1726:
1723:
1721:
1718:
1716:
1713:
1711:
1708:
1706:
1703:
1701:
1698:
1696:
1693:
1691:
1688:
1686:
1683:
1681:
1678:
1676:
1673:
1671:
1668:
1666:
1663:
1661:
1658:
1656:
1653:
1651:
1648:
1646:
1643:
1641:
1640:New Hampshire
1638:
1636:
1633:
1631:
1628:
1626:
1623:
1621:
1618:
1616:
1613:
1611:
1608:
1606:
1603:
1601:
1600:Massachusetts
1598:
1596:
1593:
1591:
1588:
1586:
1583:
1581:
1578:
1576:
1573:
1571:
1568:
1566:
1563:
1561:
1558:
1556:
1553:
1551:
1548:
1546:
1543:
1541:
1538:
1536:
1533:
1531:
1528:
1526:
1523:
1521:
1518:
1516:
1513:
1511:
1508:
1506:
1503:
1501:
1498:
1495:
1492:
1491:
1489:
1485:
1479:
1476:
1474:
1471:
1469:
1466:
1464:
1461:
1459:
1456:
1454:
1451:
1449:
1446:
1445:
1443:
1439:
1435:
1428:
1423:
1421:
1416:
1414:
1409:
1408:
1405:
1395:
1391:
1388:
1383:
1379:
1375:
1371:
1365:
1362:
1360:
1357:
1356:
1354:
1352:
1348:
1342:
1339:
1337:
1334:
1332:
1329:
1327:
1324:
1322:
1319:
1317:
1314:
1312:
1309:
1307:
1304:
1302:
1299:
1297:
1294:
1292:
1289:
1287:
1284:
1282:
1279:
1277:
1274:
1272:
1269:
1267:
1264:
1262:
1259:
1257:
1254:
1252:
1249:
1247:
1246:Kaleva Temple
1244:
1242:
1239:
1237:
1234:
1232:
1229:
1227:
1224:
1222:
1219:
1217:
1214:
1212:
1209:
1207:
1204:
1202:
1199:
1197:
1194:
1193:
1191:
1189:
1185:
1180:
1170:
1167:
1165:
1162:
1160:
1157:
1155:
1152:
1150:
1147:
1145:
1142:
1140:
1137:
1135:
1132:
1130:
1127:
1125:
1122:
1121:
1119:
1117:
1113:
1109:
1105:
1098:
1093:
1091:
1086:
1084:
1079:
1078:
1075:
1068:
1064:
1061:
1059:
1056:
1053:
1050:
1048:
1045:
1043:
1040:
1038:
1035:
1034:
1030:
1013:
1007:
1004:
999:
993:
990:
977:
973:
967:
964:
959:
953:
950:
937:
931:
928:
915:
909:
906:
893:
887:
884:
878:
875:
870:
864:
853:September 22,
845:
838:
832:
829:
826:
821:
818:
815:
810:
807:
803:
797:
794:
789:
783:
781:
777:
773:
769:
764:
761:
757:
753:
750:
745:
742:
738:
732:
729:
725:
719:
716:
712:
706:
703:
697:
694:
681:
677:
671:
668:
663:
659:
652:
649:
645:
639:
636:
623:
619:
615:
609:
607:
603:
596:
595:
588:
575:
564:
557:
555:
551:
546:
542:
541:
536:
530:
527:
520:
516:
513:
511:
508:
506:
503:
502:
498:
496:
494:
490:
485:
482:
481:Michigan Tech
477:
474:
472:
468:
464:
460:
456:
451:
449:
445:
441:
437:
428:
420:
413:
411:
408:
404:
400:
392:
388:
379:
377:
372:
368:
366:
362:
358:
353:
348:
343:
341:
337:
336:Minesota Mine
332:
329:(the town of
328:
327:Massachusetts
319:
318:native copper
314:
306:
298:
290:
283:
281:
279:
275:
271:
267:
263:
258:
254:
251:located near
250:
247:
243:
233:
229:
225:
223:Added to NRHP
221:
216:
213:
210:
203:
199:
195:
191:
187:
182:
154:
150:
147:
144:
140:
137:
132:
129:
125:
104:
79:
69:
62:
57:
53:
49:
44:
40:
35:
26:
22:
16:
1700:South Dakota
1690:Rhode Island
1685:Pennsylvania
1665:North Dakota
1386:
1378:Italian Hall
1363:
1016:. Retrieved
1006:
992:
980:. Retrieved
976:the original
966:
952:
940:. Retrieved
930:
918:. Retrieved
916:. Trains.com
908:
896:. Retrieved
886:
877:
851:. Retrieved
844:the original
831:
820:
809:
801:
796:
771:
763:
744:
736:
731:
723:
718:
710:
705:
696:
686:November 20,
684:. Retrieved
680:the original
670:
661:
651:
643:
638:
626:. Retrieved
622:the original
617:
599:(32 KB)
593:
574:cite journal
538:
529:
486:
478:
475:
452:
433:
395:
376:World War II
373:
369:
344:
323:
316:Quincy Mine
261:
256:
241:
239:
142:Nearest city
15:
1821:Other areas
1781:Puerto Rico
1615:Mississippi
1530:Connecticut
942:October 17,
920:October 17,
898:October 17,
489:groundwater
242:Quincy Mine
176: /
152:Coordinates
1911:Categories
1730:Washington
1650:New Mexico
1645:New Jersey
1520:California
521:References
399:mine hoist
347:amygdaloid
276:, and the
164:88°34′11″W
1740:Wisconsin
1705:Tennessee
1610:Minnesota
1585:Louisiana
1387:See also:
1018:April 29,
982:March 30,
197:Architect
161:47°8′18″N
1896:Category
1725:Virginia
1675:Oklahoma
1655:New York
1630:Nebraska
1620:Missouri
1605:Michigan
1595:Maryland
1580:Kentucky
1560:Illinois
1535:Delaware
1525:Colorado
1515:Arkansas
1014:. Mindat
863:cite web
752:Archived
628:June 27,
499:See also
436:Keweenaw
363:and the
357:Keweenaw
212:89001095
127:Location
1842:Related
1745:Wyoming
1720:Vermont
1625:Montana
1565:Indiana
1545:Georgia
1540:Florida
1510:Arizona
1500:Alabama
1680:Oregon
1635:Nevada
1575:Kansas
1550:Hawaii
1505:Alaska
1441:Topics
774:(HTML)
597:
272:, the
246:copper
1812:Palau
1710:Texas
1590:Maine
1555:Idaho
847:(PDF)
840:(PDF)
758:(PDF)
566:(pdf)
471:2-8-0
459:2-6-0
249:mines
1766:Guam
1715:Utah
1670:Ohio
1570:Iowa
1392:and
1020:2012
984:2012
944:2021
922:2021
900:2021
869:link
855:2008
688:2010
630:2008
591:and
587:help
493:adit
352:lode
240:The
189:Area
1106:in
465:of
342:).
207:No.
1913::
865:}}
861:{{
779:^
770:,
660:,
616:.
605:^
578::
576:}}
572:{{
553:^
543:.
537:.
450:.
367:.
1496::
1426:e
1419:t
1412:v
1096:e
1089:t
1082:v
1022:.
1000:.
986:.
960:.
946:.
924:.
902:.
871:)
857:.
790:.
690:.
632:.
589:)
585:(
133:,
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.