U N Reservoir
Low Hazard ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Hill |
| Nearest City | NO TOWN |
| River/Stream | MARIETTA COULEE |
| Coordinates | 48.89820, -109.92420 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 124 acre-ft |
| Max Storage | 124 acre-ft |
| Normal Storage | 100 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | MARGRET L SMITH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |