Billings Office U.S. Attorney's Office 2601 2nd Ave N. Suite 3200 Billings, MT 59101
By telephone
Billings Office Main Phone: (406) 657-6101 or toll free at (800) 291-6108 Billings Fax Line: (406) 657-6989
Great Falls Office Main Phone: (406) 761-7715 or toll free at (888) 326-2894 Great Falls Office Fax Line: (406) 453-9973
Helena Office Main Phone: (406) 457-5120 or toll free at (866) 333-8835 Helena Office Fax Line: (406) 457-5130
Missoula Office Main Phone: (406) 542-8851 or toll free at (866) 291-3836 Missoula Office Fax Line: (406) 542-1476 By mail
Billings Office
U.S. Attorney's Office
2601 2nd Ave N.
Suite 3200
Billings, MT 59101
Butte Office
Our Butte Office is unstaffed. Postal mail can be sent to either our Helena or Billings Offices.
Great Falls Office
U.S. Attorney's Office
119 1st Ave N.
Suite 300
Great Falls, MT 59401
Helena Office
901 Front St.
Suite 1100
Helena, MT 59626
Missoula Office
P.O. Box 8329
Missoula, MT 59807
Meet the U.S. Attorney Leif M. Johnson Acting U.S. Attorney Leif Johnson
Acting U.S. Attorney Leif M. Johnson is a career prosecutor who began with the U.S. Department of Justice in Washington in 1992. He received his law degree from the University of Montana in 1990 and later clerked for U.S. District Court Judge Jack D. Shanstrom in Billings, Montana. After a two-year clerkship, Mr. Johnson joined the Department of Justice Environment and Natural Resources Division (ENRD) as a trial attorney in the Department of Justice Honors Program. He litigated water rights and land issues for the Indian Resources Section of the ENRD for several years and then returned to Montana in 1995 as an Assistant U.S. Attorney for the District of Montana. In the U.S. Attorney’s Office, he served as a line assistant in the Civil Division until 2006 when he was designated as Civil Chief. Mr. Johnson became Appellate Chief for the office in 2013, and First Assistant in 2016. Under the Vacancies Reform Act, Mr. Johnson now serves as the Acting U.S. Attorney until a successor is nominated by the President and confirmed by the U.S. Senate. This is Mr. Johnson’s second designation as Acting U.S. Attorney.