This is a list, which includes a photographic gallery, of some of the remaining historic buildings, houses, bridges, structures and monuments in Flagstaff, Arizona, some of which are listed in the National Register of Historic Places (NRHP).

Also included is a photographic gallery of the Two Spot Logging Train which is listed in the NRHP and the Flagstaff Station.

His cabin at the base of Mars Hill is listed in the National Register of Historic Places.

The origins of the town name of Flagstaff came about when on July 4, 1855, a surveyor for the Santa Fe Railroad by the name of Samuel Clark Hudson, accompanied by his team, climbed a tall pine tree and tied a flag.

[1] Flagstaff's early economy was based on the lumber, railroad, and ranching industries.

The company office as well as the logging train used and the family estate are all listed in the National Register of Historic Places.

Among the other historic houses listed in the NRHP of Flagstaff's early pioneers are that of Hugh E. Campbell.

He was one of the owners of the firm named Campbell-Francis and Co., the largest sheep ranchers in Arizona.

The hotel was host to notable figures such as Jane Russell, Gary Cooper, Spencer Tracy, John Wayne, Bing Crosby and President Harry S.

[11] The dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh the Lowell Observatory.

The Heritage Preservation Commission of Flagstaff meets in the Council Chambers located in City Hall.

Koch House was demolished and the area in which it was once located was converted into an automobile parking lot for a local law firm.

According to Jim McPherson, Arizona Preservation Foundation Board President: "It is crucial that residents, private interests, and government officials act now to save these elements of our cultural heritage before it is too late.

"[13] The city has various archeological sites listed in the National Register of Historic Places which are not pictured.

Listed in the National Register of Historic Places on February 24, 1995, Ref.

Listed in the National Register of Historic Places on February 24, 1995, Ref.

Listed in the National Register of Historic Places on February 24, 1995, Ref.

Listed in the National Register of Historic Places on February 24, 1995, Ref.

Listed in the National Register of Historic Places on January 10, 2008, Ref.

Listed in the National Register of Historic Places on April 20, 1992, Ref.

Listed in the National Register of Historic Places on April 30, 1986, Ref.

Roughly bounded by Hunt, San Francisco and Verde, Elm and Cherry, and Beaver and Humphreys Streets.

Located in 1⁄3 mile (0.54 km) west of the junction of U.S. Route 180 and Bader Road.

The Two Spot Logging Train was built in 1911 and is now on exhibition by the Junction of San Francisco Street and BNSF Railroad.

The victims of the same crash, in United Airlines 718, are memorialized in Grand Canyon Pioneer Cemetery.

[15] Buried in Tract J; Block A; Lot 13; Space 2 in the cemetery is the notable former Coconino County Sheriff Commodore Perry Owens.

Owens confronted and killed three men in what became known as the Owens-Blevins Shootout during the Pleasant Valley War.

He also photographed Mars and was part of the team that discovered the ninth planet, Pluto, in March 1930.

Elden Pueblo, which is located just off highway 89A, is preserved as a cultural heritage cite by the US Forest Service.

[19] Flagstaff's Pioneer Museum, operated by the Arizona Historical Society, was established in 1963 and is located at 2340 North Fort Valley Road.