The photographer is standing on Houck’s Ridge just down the ridge from the monument to the 99th Pennsylvania Infantry Regiment (shown in the right portion of this shot), facing Little Round Top and Plum Run Valley. This view was taken at approximately 4:15 PM on Friday, April 13, 2012. For a medium-sized version of the panorama click here. For the larger JPEG version, click here. If you’d like to see the uncompressed TIFF file, you can download it here (57.0 MB).
The photographer is standing slightly to the east of the monument to the 99th Pennsylvania Infantry Regiment, located on Houck’s Ridge, above (north of) Devil’s Den.