Girl Scouts of Montana & Wyoming Resource-Service ClubsResource-YouthNon-Profit Organizations Girl Scouts of Montana & Wyoming Visit Website 2303 Grand Avenue Billings, MT 59102 (406) 252-0488 1-800-736-5243 (406) 252-4063 (fax) About About The Girl Scout mission: Building girls of courage, confidence, and character who make the world a better place. We’re the preeminent leadership development organization for girls.