Headquarters

353 Old Hays Rd.
Hays, MT 59527
406.673.3031
contact@islandmtn.com

Billings Office

1537 Avenue D
Billings, MT 59102
406.969.6777
contact@islandmtn.com

Havre Office

1753 U.S. Highway 2 – NW – SPC 36
Havre, MT 59501
406.400.2750
contact@islandmtn.com

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HEADQUARTERS

353 Old Hays Rd.
Hays, MT 59527
406.673.3031
contact@islandmtn.com

BILLINGS OFFICE

1537 Avenue D
Billings, MT 59102
406.969.6777
contact@islandmtn.com

HAVRE OFFICE

1753 U.S. Highway 2 – NW – SPC 36
Havre, MT 59501
406.400.2750
contact@islandmtn.com

OUR COMPANIES

GVA Holdings, LLC
Island Mountain Realty Holdings
Classic Design Homes
Snake Butte Construction

COMMUNITY PARTNERS

Aaniiih Nakoda Community Foundation
Life’s Language Lodge
Nakoda Aaniiih Economic Development Corporation

© 2025 Island Mountain Development Group