You can zoom in on this picture.
text on the sign
Keogh-Crazy Horse Fight
The Indian charge shatters the Calhoun defense and crashes through the soldier position at right, held by Capt. Myles Keogh's Company I. Crazy Horse and White Bull cut down the retreating soldiers who flee northwest along this ridge in an effort to join the remnants of Custer's command on Last Stand Hill. Members of Company C and L were also found here.
at the bottom of the sign
"It looked to me as if Keogh must have attempted to make a stand on foot to enable Custer to get away because he and his company died in one compact mass, wheras from here on the graves are scattered in irregular clumps and at intervals about like those in the slaughter of buffaloes..."
-- Lt. John Bourke, 3rd Cavalry, 1877.
"The soldiers were on one side of the hill, and the Indians on the other side, a slight rise between the two parties. At this point Crazy Horse came up and rode between the two parties. The soldiers fired at once, but missed him."
-- Red Feather, Oglala Lakota.