LAKE COUNTY, CO HISTORY AND LOOKUP

County History Books

*None Listed

Lake County, Colorado: A Genealogical Overview

Located high in the Rocky Mountains, Lake County is the highest county by mean elevation in the United States and holds a legendary place in the history of the American West. Its story is one of dramatic mining booms and busts, from the initial gold rush to the silver frenzy that created the “Cloud City” of Leadville. For genealogists, its history as an original territorial county with a shifting population and several county seat changes offers both rich opportunities and unique challenges.

I. County Formation and Evolution

Understanding Lake County’s origin as one of Colorado’s first counties and its several county seat changes is critical for tracing its early, often transient, population.

  • 1861: County Formed: Lake County was established on November 1, 1861, as one of the original 17 counties of the newly formed Colorado Territory.
  • Parent County: It was an original territorial county, not formed from a parent. Its original boundaries were immense, and large portions were later carved off to form Chaffee, Park, Pitkin, and other counties.
  • Name Origin: The county was named for the beautiful Twin Lakes located within its boundaries.
  • County Seat History: The county seat moved frequently during its early years, following the shifting mining populations. It was first located at Oro City (1861), then Dayton (1863), back to Oro City (1866), and then to Granite in 1868. Finally, with the spectacular silver boom, the seat was permanently moved to Leadville in 1878.

II. Settlement and Early History

  • Early Inhabitants: The mountainous region was the traditional homeland of the Ute people, particularly the Tabeguache band.
  • Gold Rush and Silver Boom: The county’s first wave of American settlement was driven by the Pikes Peak Gold Rush, with thousands of miners flocking to California Gulch near present-day Leadville in 1860. This gold boom quickly faded. However, in the late 1870s, the discovery that the area’s heavy sand was rich in lead carbonate and silver set off one of the world’s greatest silver rushes. Leadville exploded in population, becoming a fabulously wealthy and famous city, home to notable figures like Horace and Baby Doe Tabor and Margaret “The Unsinkable Molly” Brown.
  • Economy: The economy was almost entirely dependent on mining. After the silver boom, lead, zinc, and later, molybdenum mining at the nearby Climax mine sustained the county through much of the 20th century. The Leadville Strike of 1896 was a major event in American labor history.

III. Genealogical Records and Resources

This section provides practical information for locating ancestral records specific to Lake County.

  • Courthouse:
    • Lake County Clerk & Recorder: Located at the Lake County Courthouse, 505 Harrison Avenue, Leadville, CO 80461. This office is the primary repository for land records and marriage licenses from the county’s formation.
    • Lake County Combined Court: Also located at the Lake County Courthouse, this court holds historical probate, civil, and criminal records.
  • Vital Records:
    • Birth and Death Records: Official statewide registration began in the early 1900s. These records are held by the Colorado Department of Public Health and Environment in Denver. Due to the boom-town nature of early Leadville, pre-1900 records are inconsistent but may sometimes be found in courthouse or church records.
    • Marriage Records: Marriage records from 1861 to the present are held by the Lake County Clerk & Recorder.
  • Libraries and Museums with Genealogy Collections:
    • Lake County Public Library: Located at 1115 Harrison Avenue, Leadville, CO 80461. It offers local history resources and access to genealogical databases.
    • National Mining Hall of Fame and Museum: Located in Leadville, this museum offers historical context and exhibits crucial for understanding the lives of mining ancestors.
    • Healy House Museum & Dexter Cabin: Maintained by History Colorado, this site provides insight into the daily lives of Leadville’s wealthy residents during the silver boom.
    • Denver Public Library: The Western History and Genealogy Department holds extensive statewide collections, including newspapers and records relevant to Lake County.
  • Bordering Jurisdictions:
    • Chaffee County
    • Eagle County
    • Park County
    • Pitkin County
    • Summit County

Please share any resources you have and will do lookups or links to resources you are aware of. Thanks