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Mining Properties (Tables) | 12 Months Ended
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Dec. 31, 2022
Mining Properties [Abstract] |
Mining Properties | Mining properties consist of the following (in thousands):
December 31, 2022 | Palmarejo |  | Rochester |  | Kensington |  | Wharf |  | Silvertip |  | Sterling |  | Other |  | Total
Mine development | $ | 336,656 |  |  | $ | 637,321 |  |  | $ | 410,255 |  |  | $ | 67,326 |  |  | $ | 81,827 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,533,385 |
Accumulated amortization | (226,437) |  |  | (161,305) |  |  | (327,499) |  |  | (25,306) |  |  | (12,622) |  |  | — |  |  | — |  |  | (753,169) |
| 110,219 |  |  | 476,016 |  |  | 82,756 |  |  | 42,020 |  |  | 69,205 |  |  | — |  |  | — |  |  | 780,216 |
Mineral interests | 629,303 |  |  | 19,098 |  |  | — |  |  | 48,062 |  |  | 114,036 |  |  | — |  |  | 10,613 |  |  | 821,112 |
Accumulated amortization | (542,886) |  |  | — |  |  | — |  |  | (36,179) |  |  | (24,828) |  |  | — |  |  | — |  |  | (603,893) |
| 86,417 |  |  | 19,098 |  |  | — |  |  | 11,883 |  |  | 89,208 |  |  | — |  |  | 10,613 |  |  | 217,219 |
Mining properties, net | $ | 196,636 |  |  | $ | 495,114 |  |  | $ | 82,756 |  |  | $ | 53,903 |  |  | $ | 158,413 |  |  | $ | — |  |  | $ | 10,613 |  |  | $ | 997,435 |
As further discussed in Note 21 -- Dispositions, the consideration for the sale of La Preciosa project included two royalties, a 1.25% net smelter returns royalty on properties covering the Gloria and Abundancia areas of the La Preciosa project and a 2.00% gross value royalty on all areas of the La Preciosa project other than the Gloria and Abundancia areas. The fair value of the royalties was $11.2 million, valued as of the date of closing of the transaction.
December 31, 2021 | Palmarejo |  | Rochester |  | Kensington |  | Wharf |  | Silvertip |  | Sterling |  | Other |  | Total
Mine development | $ | 307,698 |  |  | $ | 437,833 |  |  | $ | 382,492 |  |  | $ | 49,045 |  |  | $ | 67,805 |  |  | $ | 3,861 |  |  | $ | — |  |  | $ | 1,248,734 |
Accumulated amortization | (211,187) |  |  | (158,805) |  |  | (302,582) |  |  | (24,358) |  |  | (11,685) |  |  | (1,515) |  |  | — |  |  | (710,132) |
| 96,511 |  |  | 279,028 |  |  | 79,910 |  |  | 24,687 |  |  | 56,120 |  |  | 2,346 |  |  | — |  |  | 538,602 |
Mineral interests | 629,303 |  |  | 19,098 |  |  | — |  |  | 48,062 |  |  | 114,036 |  |  | 95,499 |  |  | — |  |  | 905,998 |
Accumulated amortization | (532,155) |  |  | — |  |  | — |  |  | (34,818) |  |  | (24,828) |  |  | — |  |  | — |  |  | (591,801) |
| 97,148 |  |  | 19,098 |  |  | — |  |  | 13,244 |  |  | 89,208 |  |  | 95,499 |  |  | — |  |  | 314,197 |
Mining properties, net | $ | 193,659 |  |  | $ | 298,126 |  |  | $ | 79,910 |  |  | $ | 37,931 |  |  | $ | 145,328 |  |  | $ | 97,845 |  |  | $ | — |  |  | $ | 852,799 |

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- Definition Mining Properties. + References No definition available. + Details
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