Segundo

History

Segundo was founded by Colorado Fuel and Iron (CF&I) as a company town to house its workers for a local coal mine. The town was the second mining community developed by CF&I in 1904 behind Primero and was referenced in the town's name, with segundo meaning "second" in Spanish. CF&I offered adequate housing for the time, and promoted upward mobility through its sponsorship of a YMCA center, an elementary school, small businesses, and a company store. Segundo was a prosperous town until the 1920s, when the population began to decline due to constant health issues related to air pollution and outdated housing that lacked indoor plumbing. Declines in demand for metallurgical coke led to workers being laid off and, following a major fire in 1929, CF&I ceased their operations in Segundo. The town's population plummeted to the point that it almost became a ghost town.

Geography

Segundo is located west of Trinidad along Colorado State Highway 12 in the valley of the Purgatoire River. The Segundo CDP has an area of , all land.

Race & ethnicity

Most-observed species

• American Robin

  Turdus migratorius Linnaeus, 1766 · Aves
  571
• Spotted Towhee

  Pipilo maculatus Swainson, 1827 · Aves
  497
• Woodhouse's Scrub-Jay

  Aphelocoma woodhouseii (S.F.Baird, 1858) · Aves
  415
• Common Raven

  Corvus corax Linnaeus, 1758 · Aves
  403
• Turkey Vulture

  Cathartes aura (Linnaeus, 1758) · Aves
  337
• Canada Goose (canadensis Group)

  Branta canadensis (Linnaeus, 1758) · Aves
  324
• Northern Flicker

  Colaptes auratus (Linnaeus, 1758) · Aves
  291
• American Crow

  Corvus brachyrhynchos C.L.Brehm, 1822 · Aves
  275

Most recent

• M 2.7 — 2026-08-17
  8 km SW of Walsenburg, Colorado
• M 2.5 — 2026-08-16
  12 km NNW of Walsenburg, Colorado
• M 2.6 — 2026-08-06
  15 km SSE of Stonewall Gap, Colorado
• M 3.4 — 2026-07-27
  31 km S of Weston, Colorado
• M 3.7 — 2026-07-06
  32 km SSW of Segundo, Colorado
• M 3.8 — 2026-07-06
  34 km SSW of Segundo, Colorado