GBMAGettysburg Battlefield Memorial Association (est. 1864; Gettysburg, PA)
GBMAGaussian Beam Mode Analysis
GBMAGreater Blue Mountains Area (Australia)
GBMAGrizzly Bear Management Area (various locations)
GBMAGreater Boston Metropolitan Area (Massachusetts)
References in periodicals archive ?
The association's preservation efforts were commendable; yet, hindered by a lack of money and a strict enabling legislation, the GBMA was only able to purchase land on the Army of the Potomac's battle line.
On February 11, 1895 Congress approved "An Act To Establish A National Military Park at Gettysburg, Pennsylvania" and the GBMA formally deeded its 522 acres to the U.
Once the GBMA officially deeded its holdings to the War Department, the association was abolished.