Bank of the San Juans has offices in Durango and Pagosa Springs, Colo. As of June 30, the bank had total assets of $146 million. Glacier Bancorp, based in Kalispell, is a multi-bank holding company with 10 subsidiaries in 53 communities in Montana, Idaho, Utah, Washington, and Wyoming. As of June 30, Glacier had assets of $5 billion.

The boards of Glacier and Bank of the San Juans Bancorporation unanimously approved the transaction, which is subject to regulatory approval.