Cool Black Rock

Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateMontana
CountyHill
Nearest CityLOMA
River/StreamROCKY COULEE
Coordinates48.41800, -110.65580

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length900 ft
Year Completed1919 (107 years old)

Storage & Hydraulics

NID Storage100 acre-ft
Max Storage100 acre-ft
Normal Storage50 acre-ft

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerALFRED E RATHBUN
Owner TypePrivate
Hazard ClassificationLow
Emergency Action PlanNot Required

Identifiers

NID IDMT00249
Federal IDMT00249
More InfoState Dam Safety Program

Nearby Dams

Samantha 3.6 mi Low Black Cat 3.8 mi Low A C Lincoln 4.3 mi Low Peebles 6.2 mi Significant Delmar 9.8 mi Low Echo Reservoir 10.3 mi Low Bye Gone 11.7 mi Low Hingham Sandy Sage 13.3 mi Low Prescott 13.7 mi Low Narcissus 15.0 mi Low