Abandoned Mine Site Inventory
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BLM maintains an inventory of known abandoned mine lands on public lands. Most of the sites are abandoned hardrock mines. As of January 10, 2013, the inventory contained nearly 39,000 sites and 76,600 features. Approximately 23% of the sites have either been remediated, have reclamation actions planned or underway, or do not require further action. The remaining 77% require further investigation and/or remediation.
|Abandoned Mine Lands Site Status (01/10/2013)|| || || || || || |
|Geographic State||Action Completed|
|Total:||Remaining Sites (C+D+E+G)|
|New Mexico||554|| ||26|| ||3,485||27||391||4,483||3,902|
Source: BLM's AML inventory database.
*This data should be considered soft because the BLM is currently reviewing and updating its data. In addition, the majority of sites were reported during the initial inventory efforts from various sources, but have not been assessed on the ground by the BLM.
Abandoned Mine Site Features Inventory
|Abandoned Mine Land Feature Types|| || |
|As of 01/10/2013|| || |
|Feature Type||Number||% of |
|Mine/Mineral Processing Mill||277||0%|
|Reserve Pits/PWP/Other Waste||320||0%|
|Waste Rock Dump||9,675||13%|
|Source: BLM's Abandoned Mine Lands/site Cleanup Inventory Database|| || |
The BLM has been able to identify the specific feature type for approximately 65% of its feature records. For the undetermined, planned, or in progress sites, data show that the most commonly identified feature types are:
- Open adits and shafts;
- Waste dumps;
- Highwalls and pits; and
- Tailings piles
The remaining 35% of the feature records (20,672, Other) need further data review and/or field validation.