Geraldine

History

Geraldine was originally created as a stop on the Milwaukee Railroad. It was named for Almira Geraldine Rockefeller (or perhaps her daughter, Ethel Geraldine Rockefeller Dodge), the wife of William Rockefeller, the director of the railroad at the time. The Milwaukee Road built a branch line from Harlowton to Great Falls in 1916. The town's wood-constructed railroad depot, also built in 1916, has been restored in recent years, now contains displays on the history of the area, and is a Montana Historic Site which is on the National Register of Historic Places. The Central Montana Rail runs a tourist train from Lewistown to Geraldine in the summer and passengers get to tour the restored depot.

Geography

Montana Highway 80 cuts through town. It is near both Kingsbury Lake and Big Lake. According to the United States Census Bureau, the town has a total area of , all land.

Most-observed species

• Western Meadowlark

  Sturnella neglecta Audubon, 1844 · Aves
  37
• Black-billed Magpie

  Pica hudsonia (Sabine, 1823) · Aves
  26
• European Starling

  Sturnus vulgaris Linnaeus, 1758 · Aves
  24
• Common Raven

  Corvus corax Linnaeus, 1758 · Aves
  21
• Mourning Dove

  Zenaida macroura (Linnaeus, 1758) · Aves
  20
• Long-billed Curlew

  Numenius americanus Bechstein, 1812 · Aves
  18
• Black-capped Chickadee

  Poecile atricapillus (Linnaeus, 1766) · Aves
  18
• Red-winged Blackbird

  Agelaius phoeniceus (Linnaeus, 1766) · Aves
  18

Most recent

• M 3.7 — 2026-09-18
  7 km NNW of Black Eagle, Montana
• M 2.6 — 2026-02-26
  10 km NNE of Black Eagle, Montana
• M 3.7 — 2026-02-13
  3 km SE of Black Eagle, Montana
• M 3.2 — 2026-02-01
  3 km NW of Malmstrom Air Force Base, Montana
• M 2.7 — 2026-01-30
  5 km NNW of Malmstrom Air Force Base, Montana
• M 4.2 — 2026-01-29
  9 km N of Black Eagle, Montana