Snow drives the party of Lieutenant Ector Latham out of the Montana high country .

Floyd Risvold "O" party packing into Station Highwood.

Unpacking horse at Station Sheep. Ranger station in background.

Observing party at Station Posten which is located on Poston Butte. The station name was apparently mis-spelled and stamped incorrectly. The pyramid is the fire temple of pioneer Arizona statesman Charles Poston (1852-1902) who converted to Zoroastroism. Poston is known as the Father of Arizona and is buried at this site.

Observing party camp at Station Ridge. L to R Vic Smith, Floyd Risvold, Bill Husemeyer.

Camp near Wintersburg in December 1934. Looking west towards setting moon just before sunup.

Station Bennett on a volcanic diatreme similar to Shiprock. The station was on the shoulder of the high sharp peak as the peak itself could only have been scaled with great difficulty. Bennett Peak was named for Frank Bennett, Indian agent for the Navajos, in the late 19th Century. Party of Lieutenant Jack Johnson.

Rocky Mountain canaries (a nickname for the burros).

Station with observing tent set under a lookout tower. Several trees had to be felled to clear lines of sight from this station. Everything is relative - according to Floyd Risvold, this station was close to the road, only about a 10- mile pack.

Somewhere in New Mexico. L to R Bill Husemeyer, Vic Smith, and ???.

Observing tent set up at Station Bursom.

A 130-foot steel Bilby tower. The largest of this particular project. Oscar Risvold, Dube Erickson, and Red Dana on top of tower.

Red Dana standing on light stand at the very top of a Bilby tower.

Bilby tower in the San Joaquin Valley.

Collimating a 100-foot tower over the station mark. This is basically centering the observing stand on the interior of the tower over the station mark so that angle observations are made directly over the mark.

On the trail to Station Mogollon on the Mogollon Rim, a 25-mile horse pack.

On the trail to Station Mogollon on the Mogollon Rim, a 25-mile horse pack.

On the trail to Station Mogollon on the Mogollon Rim, a 25-mile horse pack.

The ranger station where the observing crew stayed overnight after observing Station Mogollon.

On the trail from Station Mogollon on the Mogollon Rim, a 25-mile horse pack. Floyd Risvold on left, rancher who supplied the horses on far right.

Clarence "Ole" Olsen, Floyd Risvold, Roy (somehow for Louisiana)?, Marvin ?, and W. C. Names.

Station Ripsey Hill, a short pack of a 1/4 mile from the end of truck travel. Note saguaro cactus and Spanish bayonet.

Observing tent set up over station in the vicinity of San Bernardino.

Station Pinnacle, 12 airline miles from San Bernardino.

Observing party at sunset at Station Pinnacle.

Observing party at Station Pinnacle. L to R Clarence Olson, Floyd Risvold, Bob Garvie.

Tom Sockwell and Floyd Risvold at a station in the San Joaquin Valley. Rocks anchor the stand and keep in steady even during high winds.

Floyd Risvold at station marker on top of Mount Diablo.

Oscar Risvold at Station Vaca. The monument was first erected by the Coast and Geodetic Survey in 1880.

Building party returning home at the end of the day's work. L to R Floyd Risvold, Tom Sockwell, Bill Husemeyer, Dube Erickson, and Red Dana.

Station Walnut, 1 mile west of Walnut Grove and only 22 feet from the center- line of the road, was struck by an automobile and collapsed on December 7, 1931. The driver of the vehicle was killed as he attempted to leave his vehicle while the tower was collapsing.

Station Walnut, 1 mile west of Walnut Grove and only 22 feet from the center- line of the road, was struck by an automobile and collapsed on December 7, 1931. The driver of the vehicle was killed as he attempted to leave his vehicle while the tower was collapsing.

Station Walnut, 1 mile west of Walnut Grove and only 22 feet from the center- line of the road, was struck by an automobile and collapsed on December 7, 1931. The driver of the vehicle was killed as he attempted to leave his vehicle while the tower was collapsing.

The upper part of the Bilby tower at Station Walnut prior to being struck by a vehicle on December 7, 1931.

W. C. Names, Bill Husemeyer, and "Cowboy" Roy Bixby on the way up to Station Nevada.

Passing over fallen timber on the way to Station Nevada.

Passing over fallen timber on the way to Station Nevada.

Cabin the observing party stayed in at Station Nevada.

"Cowboy" Roy Bixby in front of a pine shelter erected by the observing party to keep dry while waiting for a clear line of sight at Station Nevada on Nevada Mountain.

Clearing out downfallen timber on the trail to Mount Lolo in the Bitterroot Mountains. Bill Husemeyer with ax and W.C. Names on horse in background.

Designated "upper lake", possibly Carlton Lake on the trail to Mt. Lolo.

A view of Mount Lolo, location of a triangulation station.

A view of Mount Lolo, location of a triangulation station.

At the end of horse travel, the surveyors take over the duties of packing in the instrument and other equipment. About a 5 hour pack all total from the beginning of horse travel until reaching the 9075-foot summit of Mount Lolo.

The day John "Red" Dana and Floyd Risvold went out to look for the building party which had not returned on time from Station Gardner. L to R Clarence Olson, Cliff Lamb, Walt Howard, Red Dana, and Dick Donaldson.l

End of truck travel at the ranch. Station Gardner is on the high peak in the background. This station is just south of the inhospitable sounding Deadman Canyon.

On the trail to Station Gardner.

Near Station Little Burro. Clarence Olson and a cowhand attempting to convince a stubborn horse to enter the makeshift horse trailer.

Near Station Little Burro. Hmmm!! Wonder if the horse won the battle. See image cgs00347.

A station somewhere in New Mexico.