The 2nd Rhode Island Infantry served as a member of Eustis’ Brigade in Newton’s Division of the Sixth Corps, Army of the Potomac, a Fighting 300 Regiment. The regiment was organized in June 1861 in Providence. The regiment was initially assigned to the IV Corps of the Army of Northeastern Virginia (later became the Army of the Potomac) and saw its first combat action at the First Battle of Bull Run. The IV Corps later became the 6th Corps of the Army of the Shenandoah, and the 2nd Rhode Island participated in several fights in the Shenandoah Valley. The regiment was mustered out of service at Providence, RI on July 13, 1865. All totaled, by the end of the war the regiment lost 9 officers and 111 who were killed and mortally wounded. 2 officers and 74 men died of disease for a total of 196 casualties.
At Gettysburg, the unit was commanded by Colonel Horatio Rogers, Jr. (May 18, 1836 - November, 12, 1904). He served during the Civil War first as Major of the 3rd Rhode Island Heavy Artillery, then as Colonel of the 11th Rhode Island Volunteer Infantry, then finally as Colonel and commander of the 2nd Rhode Island Volunteer Infantry. After participating and witnessing the carnage at Gettysburg he wrote, "Death seemed to be holding a carnival." He was brevetted Brigadier General, US Volunteers on March 13, 1865 for "gallant and meritorious services during the war". After the war he rose to prominence as a lawyer and jurist, serving as Attorney General of Rhode Island from 1864 to 1867 and from 1888 to 1889. From 1891 to 1903 he served as an Associate Justice of the Rhode Island Supreme Court. Under his command at Gettysburg, the 2nd brought 409 men to the field with 1 man killed, 5 wounded and 1 who went missing.
The 2nd Rhode Island Infantry Monument is located on the right or east side of south Sedgwick Avenue if traveling north and past the Wheatfield Road intersection where 
Sykes Avenue (RD362) magically changes its name to Sedgwick Avenue after the Wheatfield Road Intersection. If looking a the four-way intersection, this monument rests at the upper right hand corner or the northeast corner of the intersection. The monument is 325 feet north of the Wheatfield Road intersection. The monument only a few feet form the road. Parking is available along both the Wheatfield Road and Sedgwick Avenue at intermittently enlarged shoulder areas. Take care to not park on anything remotely green looking as Park Police will happily ticket you. I visited this site on Monday, July 1, 2013 on the 150th anniversary of the Battle of Gettysburg @ 3:13 PM, EDT & @ an altitude of 566 feet, ASL. As always, I used my trusty and oft abused Canon PowerShot 14.1 Megapixel, SX210 IS digital camera for the photos.
The Draw the Sword site helped out by the NPS narrative and the SIRIS site offers the following description: Granite monument topped by bronze infantry accouterments of a drum, canteen, cartridge box, bayonet and a laurel crown of victory. Monument is a smooth granite shaft, 2.10 foot square and set on a rough hewn 4.6 foot square base. Overall height is 9.4 foot. An inscription and carved state seal is located on the west face. The front has an incised Seal of the State of Rhode Island, with a relief of the Greek cross of the Sixth Corps above the base.
The 2nd Rhode Island Infantry Monument was dedicated on October 12, 1886 by the State of Rhode island. The monument is composed of Westerly granite (more of the significance of that in a moment) with a bronze adornment. The sculpture is approximately 9 feet 4 inches x 5 feet² and the bronze accouterments are approximately 2 feet². The monument was fabricated by the Smith Granite Company out of Westerly, Rhode Island. The fact Westerly granite was used for the monument and it was manufactured by the Smith Granite Company & they and the infantry are both from Rhode Island is no coincidence. Smith Granite Company In 1845 Orlando Smith discovered a granite outcrop on the property owned by Joshua Babcock in Westerly, Rhode Island, and a year later purchased the site from him. He established a granite quarry shortly there after and by the 1850s was cutting granite monuments. In 1887 the Smith Granite Company was incorporated, with family members holding all the stock. There is a simple incised inscription on the front which reads:
2nd R.I.
Volunteers
Second Brigade
Third Division
Sixth Corps
The 2nd Rhode Island Infantry Monument is a contributing feature to the Gettysburg National Military Park Historic District which is nationally significant under NR Criteria A, B, C & D. Areas of Significance: Military, Politics/Government, Landscape Architecture, Conservation, Archeology-Historic. Period of Significance: 1863-1938. The original National Register Nomination was approved by the Keeper March 19, 1975. An update to this nomination was approved by the Keeper on January 23, 2004. The monument is identified as structure number MN108-A.
From the Nomination Form:
Marks general location of 2nd RI Infantry in 2nd of brigade line on p.m. July 2, 1863. 1 of 4 mns in Park to RI commands in Gettysburg Campaign. Located on Sedwick Ave, N of Wheatfield Rd. Pos. marker located on W. side of Emmitsburg Rd, S. of Codori Barn.
Short Physical Description:
Mn & pos. mark. MN: Rough hewn base, 4'6" square. Smooth shaft, 2'10" square. Topped w/ bronze sculpture of infantry accountrements. All 9'4" high. Inscription & carved State seal on W face of shaft. Position marker, rough hewn, inscribed, 3'2"x2'x2'10".
Long Physical Description:
Monument that has a position marker. Monument is a smooth granite shaft, 2.10 foot square that is topped with a bronze sculpture of infantry accoutrements and set on a rough hewn 4.6 foot square base. Overall height is 9.4 foot. An inscription and carved state seal is located on the west face. Located on Sedgwick Avenue north of Wheatfield Road. The position marker is rough hewn, 3.2x2.2 foot that is located on the west side of Emmitsburg Road, south of the Codori Barn.
My Sources
1.
NRHP Nomination Form
2.
SIRIS
3.
Stone Sentinels
4.
Virtual Gettysburg
5.
Draw the Sword
6.
Historical Marker Database
7.
Wikipedia
8.
Huntington Digital Library