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PROPERTY, PLANT AND EQUIPMENT | 9 Months Ended
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Sep. 30, 2015
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT | NOTE 4 - PROPERTY, PLANT AND EQUIPMENT The following table indicates the value of each of the major classes of our consolidated depreciable assets as of September 30, 2015 and December 31, 2014:
| (In Millions)
| September 30, 2015 |  | December 31, 2014
Land rights and mineral rights | $ | 500.6 |  |  | $ | 500.5 |
Office and information technology | 68.5 |  |  | 73.7 |
Buildings | 60.1 |  |  | 59.8 |
Mining equipment | 583.8 |  |  | 585.1 |
Processing equipment | 514.4 |  |  | 510.2 |
Electric power facilities | 46.4 |  |  | 46.8 |
Land improvements | 24.8 |  |  | 24.7 |
Other | 99.8 |  |  | 55.0 |
Construction in-progress | 34.5 |  |  | 14.4 |
| 1,932.9 |  |  | 1,870.2 |
Allowance for depreciation and depletion | (880.3 | ) |  | (799.7 | )
| $ | 1,052.6 |  |  | $ | 1,070.5 |
We recorded depreciation and depletion expense related to our continuing operations of $34.6 million and $92.8 million in the Statements of Unaudited Condensed Consolidated Operations for the three and nine months ended September 30, 2015, respectively. This compares with depreciation and depletion expense related to our continuing operations of $67.7 million and $203.8 million for the three and nine months ended September 30, 2014, respectively.

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- Definition The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13-14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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