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State of Montana Water Court

State of Montana Water Court - Sidney, MT

Lawyers in Sidney, MT

Yellowstone River Basin 300 12th Avenue NW, Suite 2 Sidney, MT 59270

Updated: 02/15/2026

Attorneys

Hon. Katherine M. Irigoin Bidegaray

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Hon. Katherine M. Irigoin Bidegaray

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Sidney, MT

Yellowstone River Basin
300 12th Avenue NW, Suite 2
Sidney, MT 59270

Directions

Phone: (406) 433-5939

Fax: (406) 433-6879

Website: http://www.courts.mt.gov/

Additional Montana Locations

Bozeman, MT  (Main Office)

601 Haggerty Lane
PO Box 1389
Bozeman, MT 59771

Directions

Fax: (406) 522-4131

Website: http://www.courts.mt.gov/

Hours: 8:00 a.m. to 5:00 p.m. Monday-Friday

Dillon, MT

Upper Missouri River Basin
2 S. Pacific #6
Dillon, MT 59725

Directions

Phone: (406) 683-3745

Fax: (406) 683-3728

Website: http://www.courts.mt.gov/

Missoula, MT

Clark Fork River Basin
200 W. Broadway Street
Missoula, MT 59802

Directions

Phone: (406) 258-4772

Fax: (406) 258-4852

Website: http://www.courts.mt.gov/

Plentywood, MT

Lower Missouri River Basin
573 Shippe Canyon Road
Plentywood, MT 59254

Directions

Phone: (406) 286-5615

Fax: (406) 286-5616

Website: http://www.courts.mt.gov/

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