The Bitterroot, Cabinet, Sapphire, Garnet and Rattlesnake mountain ranges are partly within the area. Several types of hazards are clearly prominent in this area. Building fires are inevitable in any inhabited area. Single dwelling fires are the most common event, though not the most calamitous. The Chapter has responded to an average of 32 house fires a year.
Wildfires are the most common in the relatively arid Northern Rocky Mountains.
Residential construction in forested areas has increased dramatically in recent decades, creating a serious threat to lives and property. Some dwellings are located up wooded mountain canyons that have only one road for entry and exit. Transportation systems pose a chance of accidents at all times. Highway, railroad and aircraft disasters must be anticipated. More than half of the towns listed above are situated on active rail lines.