Inventory by Districts, December 1, 2007, Montana, USA
| Districts |
2007 |
| NORTHWEST | 13,000 |
| NORTH CENTRAL | 274,000 |
| NORTHEAST | 3,000 |
| CENTRAL | 174,500 |
| SOUTHWEST | 4,000 |
| OTHER DISTRICTS | 22,500 |
| MONTANA | 491,000 |