39° 34' 55 "N, 117° 32' 5 "W - MT. AIRY quad
39° 34' 2 "N, 117° 30' 36 "W - MT. AIRY quad

These stations were built around the 1860's, probably as Overland Mail stations. Paher says the one on the east side of the pass was known as New Pass Station and was active to the 1870's and possibly beyond by travelers of the day. The other station on the west side of the pass was built below another spring.

"NEW PASS STATION, Churchill Co. CrNv-03-1860
(Castle Rock)
Location: In New Pass in the Desatoya Mountains. The rocks in these ruins of New Pass Station were in neat array and roofed with willow bundles in 1863, when 'Stagecoach King' Ben Holladay reorganized the Central Overland California and Pike's Peak Express Company into the Overland Mail and Stage Co. "New Pass Station's water spring on the hill was too small for the humans and horses. Overland Mail Division Superintendent Thomas Plain's support ranch one mile to the west kept this important water, rest and team replacement station operating.
Even after the coming of the transcontinental railroad, stages faithfully and effectively linked outlying districts to steel rails and 'civilization.'"
-Cultural Resource Overview, West Central Nevada, 1982

Don't know if this guy was just hanging out in the vicninty, the mine camp, or the Station itself.

NEVADA.
A Homicide Near Austin -
Austin, Oct. 10.
Last night a man named F. Topier came in from Smith Creek valley, 30 miles west of Austin, where he has a coal camp, and delivered himself to the authorities here, announcing that he had yesterday morning killed one R. C. Allen. He was locked up and his examination is set for next Friday. Allen was a notorious bully who has for some time past been living at New Pass, on the Overland road, about 50
miles west of here, and was well known in Austin on account of being brought in frequent conflict with the laws. The origin of the trouble between him and Topier dates back a year and a half, and grew out of jealousy about a Piute squaw. Topier claims to have acted in self-defense. The feeling in Austin is that, whatever the circumstances of the killing of Allen may be, he got his just deserts, as he has been courting a violent death ever since he has been in this section. The Coroner went out this morning to hold an inquest and to bury Allen’s body.
-Eureka Daily Sentinel. October 11, 1877

Seems everybody was pretty happy about it, though.

By Monday's Reveille we are informed as follows: The examination of Topier for the killing of R. C. Allen was concluded last Saturday night about 8 o'clock and resulted in the discharge of the prisoner, the evidence all establishing conclusively that he acted in self-defense. The evening session of the Court was held in the District Court-room, in order to accommodate the large crowd of spectators, and the announcement of the decision was received with applause. We have never known of a case in which one man killed another where public sentiment was so unanimous in favor of the accused and so strongly against the man killed as in this. Allen's death is aa cause of public rejoicing, and there cannot be found in Lander county one human being who regrets his death. It is a terrible thing and may seem cruel to rejoice in the death of a fellow creature, but when a man transforms himself into a wild beast and makes himself a terror to his neighbors he is not fit to live, and his death is looked upon as a blessing, the same as if a mad dog or a rattlesnake or any other creature that preys on human life had been killed. As showing the feeling in regard to Allen in the locality where he resided, we are told by a gentleman who was a witness in the case and who resides in Smith Creek valley, that when the Indians held a fandango, to rejoice over Allen's death, the white women said they felt as if they would like to join the dance. It must be a bad and dangerous man over whose death women rejoice and children clap their hands, as we are informed was the case in this instance.
-The Daily Appeal, October 18, 1877

Don't know if anything was active here in the early 20th century, but apparently you could at least get water and camp.

NEW PASS CANYON
N.Y.    S.F.     Churchill County.
2905   426      Drinking water, radiator water, camp site.
-Lincoln Highway Guide, 1916

There are two sets of ruins here, one on the highway itself and one behind the hill, 1.66 miles to the NW, hidden almost a quarter mile from the highway. How are they related? Were they both in use at the same time? Did they lose one and build the other? Why two so close together? Were they competitors? Which was first? Did a vehicle come from somewhere out there just to land in the Andes? We don't know. From the source above, we're going to guess that the set of ruins to the west, was the mentioned "support ranch."

You can take Mom's Buick to see both of these sites, but check the road first- it could be muddy.