These are a list of 285 mines in Armstrong.
| Name | Nearest Town | Type | More |
|---|---|---|---|
| Felton Strip | Armstrong PA | Coal (Bituminous) | View Details > |
| Finlay Power Screen | Parker Armstrong PA | Construction Sand and Gravel | View Details > |
| Fiore Development Strip Mine | Armstrong PA | Coal (Bituminous) | View Details > |
| Floating Plant Armstrong | Ledbetter Livingston KY | Construction Sand and Gravel | View Details > |
| Foster No 65 | Brownstown Armstrong PA | Coal (Bituminous) | View Details > |
| Freeport Brick Co Clay Mine | Armstrong PA | Fire Clay | View Details > |
| G L R #4 | Yatesboro Armstrong PA | Coal (Bituminous) | View Details > |
| Geidel Strip | Kittanning Armstrong PA | Coal (Bituminous) | View Details > |
| Geiger Strip | Apollo Armstrong PA | Coal (Bituminous) | View Details > |
| Giron Strips | Armstrong PA | Coal (Bituminous) | View Details > |
| Girty Mine | Armstrong PA | Coal (Bituminous) | View Details > |
| GIRTY PLANT AND QUARRY | Elderton Armstrong PA | Clay, Ceramic, Refractory Mnls. | View Details > |
| Glacial Coal Tipple | Kittanning Armstrong PA | Coal (Bituminous) | View Details > |
| GLR #1 | Sagamore Armstrong PA | Coal (Bituminous) | View Details > |
| Godfrey Pit | Armstrong PA | Construction Sand and Gravel | View Details > |
| Goldstrohm Ug | Armstrong PA | Coal (Bituminous) | View Details > |
| Gradwell #1 | Pyrra Armstrong PA | Coal (Bituminous) | View Details > |
| Graff Mine | Worthington Armstrong PA | Crushed, Broken Limestone NEC | View Details > |
| H & R Strip | Kittanning Armstrong PA | Coal (Bituminous) | View Details > |
| H & R Tipple | Armstrong PA | Coal (Bituminous) | View Details > |
| Harman #1 | Armstrong PA | Coal (Bituminous) | View Details > |
| Harman No 2 Deep | Mcwilliams Armstrong PA | Coal (Bituminous) | View Details > |
| Harman Tipple | Mcwilliams Armstrong PA | Coal (Bituminous) | View Details > |
| Harmon Coal Company | Mcwilliams Armstrong PA | Coal (Bituminous) | View Details > |
| Harmon Strip | Armstrong PA | Coal (Bituminous) | View Details > |
| Harold Mine | Armstrong PA | Coal (Bituminous) | View Details > |
| Hawk Strips | Kittanning Armstrong PA | Coal (Bituminous) | View Details > |
| Heckman Strip | Girty Armstrong PA | Coal (Bituminous) | View Details > |
| Hedrick Mine | Sugar Creek Armstrong PA | Coal (Bituminous) | View Details > |
| Heilman #1 | Ford City Armstrong PA | Coal (Bituminous) | View Details > |
| Highwall Mining Co Surface | Armstrong PA | Coal (Bituminous) | View Details > |
| Hilty Strip | Apollo Armstrong PA | Coal (Bituminous) | View Details > |
| Hiner Mine | Sugarcreek Township Armstrong PA | Coal (Bituminous) | View Details > |
| Hooks Mine | Kittanning Armstrong PA | Coal (Bituminous) | View Details > |
| Houser No. 1 | New Bethlehem Armstrong PA | Coal (Bituminous) | View Details > |
| Huff Strip | Armstrong PA | Coal (Bituminous) | View Details > |
| Iselin No 6 No 9 No 10 Surface | South Bend Township Armstrong PA | Coal (Bituminous) | View Details > |
| J & J Strips | New Bethlehem Armstrong PA | Coal (Bituminous) | View Details > |
| Jane Mine | Elderton Armstrong PA | Coal (Bituminous) | View Details > |
| JOB 123 | ECHO Armstrong PA | Coal (Bituminous) | View Details > |
| Kaskan Coal Co | Highfield Armstrong PA | Coal (Bituminous) | View Details > |
| KAYLOR MINE #3 & PLANT | East Brady Armstrong PA | Crushed, Broken Limestone NEC | View Details > |
| Keco No 1 Strip | Armstrong PA | Coal (Bituminous) | View Details > |
| Keystone Cleaning Plant | Elderton Armstrong PA | Coal (Bituminous) | View Details > |
| Keystone East | Elderton Armstrong PA | Coal (Bituminous) | View Details > |
| Kimmel | Elderton Armstrong PA | Coal (Bituminous) | View Details > |
| Kimmel No 1 Strip | Armstrong PA | Coal (Bituminous) | View Details > |
| Kimmel Strip Mine No 1 | Spring Church Armstrong PA | Coal (Bituminous) | View Details > |
| King #2 Surface | Armstrong PA | Coal (Bituminous) | View Details > |
| Kinnard Mine | Kittanning Armstrong PA | View Details > |