| Colonial Municipal Income Trust operates as a non-diversified, closed-end management investment company. It invests primarily in medium and lower quality bonds and notes issued by or on behalf of state and local government units. The trust invests mainly in hospitals, local general obligations, nursing homes, congregate care retirement, and water and sewer sectors. It focuses on debt obligations issued by the states of California, Illinois, Massachusetts, New York, Pennsylvania, Texas, and Washington. Columbia Management Advisors, Inc. serves as the investment advisor of the trust. The trust has its principal executive offices in Boston, Massachusetts. |