- Settled: The Oregon Short Line constructed a rail line in 1882 to shorten the route from Pocatello, and built a depot at Port Neuf; incorporated in 1908
- Original Name: Originally known as Port Neuf, the town was also referred to as Harkness in the early years
- Origin of Name: Named after J. H. McCammon, Assistant Attorney General in 1887, nicknamed “Junction City” because the Oregon Shortline Railroad and Northern Railroad converged there
- Known for: In 1878, Congress granted a right-of-way to John Young, son of Brigham Young, to construct a junction of two main rail lines: The Oregon Shortline Railroad and Northern Railroad; originally envisioned as a hub for the railroad, but Montpelier was chosen instead; a peace treaty with the Shoshone and Bannock Indians secured a right-of-way through their reservation, giving the first impetus to settle southeast Idaho; post office established 1883, has hotel, convenience and general stores, several shops, fire department, city offices; Marsh Valley Rodeo; once promoted by local Chamber of Commerce roadsign as “A Friendly American Town- Best Water in Idaho” in an article printed in Deseret News during 1940s or 50s about a local drinking fountain along the roadside; Red Rose Flour mill, owned by Z.C.M.I., claimed to be first in Idaho, built in 1881; town once had Catholic, Methodist, Baptist and LDS churches
- Location: 46.6 miles (45 minutes) northwest of Preston, ID on Hwy 91 N; 24.3 miles (27 minutes) southeast of Pocatello, ID on I-15, take exit 47 east
- Population: 809 as of 2022
McCammon, ID
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