Casselman Coal Mine
| This article is part of the Global Coal Mine Tracker, a project of Global Energy Monitor. |
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Casselman Coal Mine is an operating coal mine in Grantsville, Garrett County, Maryland, United States.
Location
Table 1: Project-level location details
| Mine Name | Location | Coordinates (WGS 84) |
|---|---|---|
| Casselman Coal Mine | Grantsville, Garrett County, Maryland, United States[1] | 39.657406, -79.202182 (exact) |
The map below shows the exact location of the coal mine:
Project Details
Table 2: Project status
| Status | Status Detail | Opening Year | Closing Year |
|---|---|---|---|
| Operating[1] | – | 2009[1] | – |
Table 3: Operation details
| Capacity (Mtpa) | Production (Mtpa) | Year of Production | Mine Type | Mining Method | Mine Size (km2) | Mine Depth (m) | Workforce Size |
|---|---|---|---|---|---|---|---|
| – | 0.1820157238[1] | 2025[1] | Underground[2] | – | – | 373* | 40[1] |
Table 4: Coal resources and destination
| Total Reserves (Mt) | Year of Total Reserves Recorded | Total Resources (Mt) | Coalfield | Coal Type | Coal Grade | Primary Consumer/ Destination |
|---|---|---|---|---|---|---|
| – | – | – | Appalachia | Bituminous | Met[3] | – |
Table 5: Ownership and parent company
| Owner | Parent Company | Headquarters |
|---|---|---|
| Rosebud Mining Co [100.0%][3] | natural persons [100%] | USA |
Table 6: Historical production (unit: million tonnes per annum)
| ROM or Saleable | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|
| – | 0.53[2] | 0.39[2] | 0.64[2] | 0.52[2] | 0.38[2] | 0.3[2] | 0.4[2] | – | 0.18[1] |
Note: The above sections were automatically generated and are based on data from the Global Coal Mine Tracker August 2026 release.
Ownership Tree
This ownership tree is part of the Global Energy Ownership Tracker, a project of Global Energy Monitor.
Background
Casselman Mine is an underground coal mining operation in Casselman, Maryland, USA. The mine is owned by Maryland Energy Resources LLC, a subsidiary of the Indiana, Pennsylvia-based Joseph Peles Coal Company. The mine was planned to comprise more than 4,600 acres and include 15 million tons of recoverable coal.[4]
In the week of October 1, 2010, the Maryland Department of the Environment issued a surface water discharge permit that essentially cleared the last procedural hurdle preventing development of a coal mine under the Casselman River. The permit allows Maryland Energy Resources LLC to discharge an average of 500,000 gallons of mine drainage per day, along with variable volumes of stormwater, into the North Branch of the Casselman from the underground mine.[4]
The development of a coal mine in that area had been discussed openly by public officials since at least 2008. The Casselman Basin, which runs beneath Grantsville, is estimated to contain about 116 million tons of coal, according to MDE. Maryland Energy Resources applied for the discharge permit in February 2009, but a determination was delayed partly because of concerns expressed by the Maryland Department of Natural Resources over the mine’s potential impact on two state endangered species, the hellbender salamander and stonecat fish. Members of the public echoed those concerns in a May 19, 2010 public hearing. They also voiced concerns about acid mine drainage and other issues related to monitoring the mine discharge.[4]
The mine began operation in 2013.
- Operator: Maryland Energy Resources LLC
- Owners: Corsa Coal Corp. (81%), Quintana Capital Group (19%)[5]
- Location: Garrett, Maryland, USA
- GPS Coordinates: 39.657406, -79.202182 (exact)
- Status: Operating
- Production (short tons): .523 million tons (2020)
- Total Resource:
- Total Reserves:
- Coal Type: Bituminous
- Mine Size:
- Mining Type: Underground
- Start Year:
- Source of Financing:
Coal Mine Boundaries and Methane Sources
Global Energy Monitor researchers have identified coal mine boundary/boundaries and potential sources of coal mine methane (CMM) for this mine. These research results can be used to drive CMM attribution and mitigation efforts, particularly when combined with remotely sensed methane plume locations and mine ownership data. Explore the results with the embedded map at the top of this page by clicking on the mine boundary polygon or the CMM placemarkers to reveal more details. A detailed description of this research can be found in Coal Mine Boundaries and Methane Sources. This data is also available as a downloadable companion dataset to the Global Coal Mine Tracker and the Global Methane Emitters Tracker.
Table SMP1: Coal mine boundaries and methane sources data
| ID | Mine feature category | Mine feature subcategory | Description | Coordinates precision | Data source date |
|---|---|---|---|---|---|
| M2871.B1 | mine boundary | underground | Casselman mine boundary | extracted | 2024-02-15 00:00:00 |
| M2871.P1 | ventilation system | shaft | South mine portal - ventilation system | extracted | 2024-03-28 00:00:00 |
| M2871.P2 | other | slope access or production shaft | South mine portal - production portal | extracted | 2024-03-28 00:00:00 |
| M2871.P3 | other | mine entrance or exit | South mine portal - possible access portal | extracted | 2024-03-28 00:00:00 |
Table SMP2: Coal mine boundaries and methane sources data (continued)
| ID | Notes |
|---|---|
| M2871.B1 | The boundary is the Project / Permit Boundary shown in Map 2 on the 175th page of the Technical Report on the Coal Resource and Coal Reserve Controlled by Corsa Coal Corp., signed Feb 15 2024, https://web.archive.org/web/2/https://minedocs.com/26/Corsa-Coal-Corp-TR-12312023.pdf |
| M2871.P1 | The south mine portal is shown in Map 2 on the 175th page of the Technical Report on the Coal Resource and Coal Reserve Controlled by Corsa Coal Corp., signed Feb 15 2024, https://web.archive.org/web/2/https://minedocs.com/26/Corsa-Coal-Corp-TR-12312023.pdf. The shaft location was identified visually from Google Earth Pro satellite imagery. |
| M2871.P2 | The south mine portal is shown in Map 2 on the 175th page of the Technical Report on the Coal Resource and Coal Reserve Controlled by Corsa Coal Corp., signed Feb 15 2024, https://web.archive.org/web/2/https://minedocs.com/26/Corsa-Coal-Corp-TR-12312023.pdf. The production portal location was identified visually from Google Earth Pro satellite imagery. |
| M2871.P3 | The south mine portal is shown in Map 2 on the 175th page of the Technical Report on the Coal Resource and Coal Reserve Controlled by Corsa Coal Corp., signed Feb 15 2024, https://web.archive.org/web/2/https://minedocs.com/26/Corsa-Coal-Corp-TR-12312023.pdf. The entrance/exit location was identified visually from Google Earth Pro satellite imagery. |
Articles and Resources
Additional data
To access additional data, including an interactive map of world coal mines, a downloadable dataset, and summary data, please visit the Global Coal Mine Tracker on the Global Energy Monitor website.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 https://web.archive.org/web/20240213175031/https://www.msha.gov/data-and-reports/statistics/mine-employment-and-coal-production. Archived from the original on 13 February 2024.
{{cite web}}: Missing or empty|title=(help) - ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 "Mine Data Retrieval System". Mine Health and Safety Administration. Archived from the original on 2024-07-17. Retrieved 2025-04-18.
- ↑ 3.0 3.1 https://www.post-gazette.com/business/powersource/2025/03/28/corsa-coal-bankruptcy-auction-mining/stories/202503280069.
{{cite web}}: Missing or empty|title=(help) - ↑ 4.0 4.1 4.2 Megan Miller, "MDE approves permit for Casselman mine: Authorization moves project past final development hurdle" October 1, 2010.
- ↑ 2020 Annual Report, Corsa Coal, accessed 14 June 2022.
