1. Colorado Scottish Miscellany

Things named "Cameron" in Colorado...which might not have a connection with the regiment, other than in name.

Cameron Pass
is a 10,276 ft (3,132 m) elevation mountain pass in the Rocky Mountains in north central Colorado. The pass was named for Robert Cameron, the founder of the Fort Collins Agricultural Colony in the 1870s.

(excerpt from Wikipedia article)

Robert Alexander Cameron (February 22, 1828 – March 15, 1894) was an American soldier and newspaper publisher. 

While he was not ever directly associated with the 79th New York Infantry Regiment ("Highlanders"), he had the last name, "Cameron."  He was a physician (M.D.) and a college professor (both before and after the war).

He was appointed Lt. Col. of the 19th Indiana Regiment, fighting at Chain Bridge on the Potomac River in Sept. of 1861.

In 1862 he was appointed Colonel of the 34th Indiana Regiment and led it in the Vicksburg Campaign.

He served as a Union general during the American Civil War. After Vicksburg, he was made a brigadier general and after the war was appointed a brevet major general.

Following the war, Cameron was active in establishing farm colonies in Colorado, and was also prominent in the politics and the economic development here.

In 1870 Cameron was influential in founding of Greeley, and was elected president of Greeley’s board of trustees in 1871. He was lured away by William Jackson Palmer to become superintendent of a new colony, which later would grow into the city of Colorado Springs. Cameron also took part in an attempt to establish Fort Collins.[3]

Cameron then moved to San Francisco, California, where he stayed there for few years before returning to Colorado to serve as a postal clerk in Denver.[3] From 1885–87, he served as warden of Colorado State Penitentiary.[5] In the spring of 1894 Cameron died on his farm near Cañon City, Colorado, and is buried there.[7]

Cameron Cone (originally known as Cameron's Cone) --Elevation: 10,707 ft / 3263 meters--rises prominently above Colorado Springs, and can be seen from most of town. Standing just 7 miles due west of downtown, Cameron is about 5 miles in front of Pikes Peak.

The Barr Trail and Cog Railway offer great views of Cameron Cone, and for most people, this is as close as they will get to its summit.

It was named after Robert Alexander Cameron (1828-1894). In Indiana, Cameron was a politician and then volunteered to serve in the Army during the Civil War. He helped found Greeley, Colorado as well as Colorado Springs in 1871. He was on the first Board of Trustees at Colorado College. Later, Cameron was the warden at the state penitentiary in Canon City. 

Mount Cameron---
Elevation: 14238 ft / 4340 m
Near Mount Lincoln (another "Fourteener" [a peak over 14,000 feet in height] ) 

Probably named after Simon Cameron, Lincoln's Secretary of War at the beginning of the Civil War.  This was the brother of the James Cameron, who was the Colonel of the 79th New York at the Battle of (First) Bull Run, where he died in battle.