The monument to the 86th New York Infantry Regiment is south of Gettysburg on Sickles Avenue. (39.793574° N, 77.242615° W; Google map; Tour map: Devil’s Den) It was dedicated in 1888 by the State of New York.
The 86th New York was commanded at at Battle of Gettysburg by Lieutenant Colonel Benjamin L. Higgins. He was wounded on July 2nd, and Major Jacob H. Lansing then took command.
The 86th brought 286 men to the field and lost 11 killed, 51 wounded and 4 missing.
From the front of the monument:
86th New York Infantry
2d Brig. 1st Div. 3d Corps
From the caption at the base of the bronze tablet:
I yield him unto his country and his God
From the rear:
This regiment held this position the afternoon of July 2nd 1863.
Casualties; Killed 11, Wounded 51, Missing 4.
See more on the 86th New York Volunteer Infantry Regiment in the Civil War