Can you give me a link I've never heard about that.
A prison camp for Confederate prisoners of war was built at Point Lookout, Md., on the tip of the peninsula where the Potomac River joins Chesapeake Bay. In the two years during which the camp was in operation, August, 1863, to June, 1865, Point Lookout overflowed with inmates, surpassing its intended capacity of 10,000 to a population numbering between 12,500 and 20,000. In all, over 50,000 men, both military and civilian, were held prisoner there. G.W. Jones, a private of Co. H, 24th Virginia Cavalry, described his ominous entrance into the prison amidst "a pile of coffins for dead rebels," hearing the lid close shut on his own soon thereafter when he learned that the system of prisoner exchanges had been suspended for the duration of the war. Jones described the camp as laid out into a series of streets and trenches, intended to aid in drainage, and surrounded by a fourteen foot parapet wall. Prisoners, who lived sixteen or more to a tent, were subjected to habitually short rations and limited fire wood in winter, and when the coffee ration was suspended for federal prisoners at Andersonville, the Point Lookout prisoner lost theirs as well. The worst the prisoners suffered, however, may have been inflicted by the physical conditions. The flat topography, sandy soil, and an elevation barely above high tide led to poor drainage, and the area was subjected to every imaginable extreme of weather, from blazing heat to bone-chilling cold. Polluted water exacerbated the problems of inadequate food, clothing, fuel, housing, and medical care, and as a result, approximately 4,000 prisoners died there over 22 months.
from
http://www.clements.umich.edu/Webguides/Schoff/NP/Point.html
A prison camp for Confederate prisoners of war was built at Point Lookout, Md., on the tip of the peninsula where the Potomac River joins Chesapeake Bay. In the two years during which the camp was in operation, August, 1863, to June, 1865, Point Lookout overflowed with inmates, surpassing its intended capacity of 10,000 to a population numbering between 12,500 and 20,000. In all, over 50,000 men, both military and civilian, were held prisoner there. G.W. Jones, a private of Co. H, 24th Virginia Cavalry, described his ominous entrance into the prison amidst "a pile of coffins for dead rebels," hearing the lid close shut on his own soon thereafter when he learned that the system of prisoner exchanges had been suspended for the duration of the war. Jones described the camp as laid out into a series of streets and trenches, intended to aid in drainage, and surrounded by a fourteen foot parapet wall. Prisoners, who lived sixteen or more to a tent, were subjected to habitually short rations and limited fire wood in winter, and when the coffee ration was suspended for federal prisoners at Andersonville, the Point Lookout prisoner lost theirs as well. The worst the prisoners suffered, however, may have been inflicted by the physical conditions. The flat topography, sandy soil, and an elevation barely above high tide led to poor drainage, and the area was subjected to every imaginable extreme of weather, from blazing heat to bone-chilling cold. Polluted water exacerbated the problems of inadequate food, clothing, fuel, housing, and medical care, and as a result, approximately 4,000 prisoners died there over 22 months.
from http://www.clements.umich.edu/Webguides/Schoff/NP/Point.html
Another link on Point Lookout may be found at http://www.interment.net/data/us/md/stmarys/ptlookout/
It estimates the death toll there to have been over 14,000