International outdoor apparel and footwear manufacturer Columbia Sportswear Company (Nasdaq:COLM) announced today that it has signed a Letter of Intent with ADC Telecommunications, Inc for the purchase of a new site for its headquarters. The financial terms have yet to be determined. The 188,500 sq ft structure is located in Washington County in the State of Oregon. The purchase is contingent upon Columbia Sportswear's satisfactory review of zoning, engineering, and environmental studies, which are currently being conducted.