East Boulder Tailings Dam

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMontana
CountySweet Grass
Coordinates45.50570, -110.08535

Physical Characteristics

Storage & Hydraulics

NID Storage460 acre-ft
Max Storage460 acre-ft
Normal Storage153 acre-ft
Surface Area103 acres

Ownership & Safety

PurposeTailings
OwnerSTILLWATER MINING CO
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection02/09/2021
Emergency Action PlanYes

Identifiers

NID IDMT03989
Federal IDMT03989
More InfoState Dam Safety Program

Nearby Dams

Stillwater Nye Tailings Dam 13.1 mi High Stillwater Hertzler Tailings Dam 14.9 mi High