Interlaken Resort District

E of Twin Lakes off CO 82, Twin Lakes, CO
Local significance of the district:
Entertainment/recreation; Architecture

Listed in National Register of Historic Places in 1974.

The National Register of Historic Places is the official list of the Nation’s historic places worthy of preservation. Authorized by the National Historic Preservation Act of 1966, the National Park Service’s National Register of Historic Places is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect America’s historic and archeological resources.

The town of Leadville, Colorado, located at an elevation of over 10,000 feet, was once the second-largest city in Colorado and home to the richest silver mine in the world. It also has the distinction of having the highest airport in North America, at an elevation of 9,927 feet.
Lake County, Colorado, located in the heart of the Rocky Mountains, has a rich and fascinating history. It was initially inhabited by various Native American tribes, including the Ute and Apache peoples, who utilized the area for hunting and gathering.

In the mid-19th century, the discovery of gold in the area led to a significant influx of prospectors and miners. In 1860, the California Gulch was discovered, bringing forth a massive gold rush. The boomtown of Oro City sprang up instantly, becoming a bustling community of over 10,000 people. However, as the gold mines dwindled, so did the population, and by the early 1870s, the town was almost completely abandoned.

Following the decline of Oro City, the focus shifted to Leadville. Discovered in 1877, this new mining town quickly became a major hub of silver mining. Leadville grew astonishingly fast, attracting tens of thousands of people from all over the world. At its peak, the town boasted a diverse population and was home to some of the wealthiest silver magnates of the time.

By the late 19th century, Lake County had gained prominence for more than its mining activities. The town of Twin Lakes became a popular tourist destination due to its picturesque landscapes and the Mount Massive hot springs. Many hotels and resorts were developed, attracting visitors seeking both relaxation and outdoor recreation.

Over the years, Lake County's fortunes fluctuated with the boom and bust cycles of the mining industry. However, the area's natural beauty has persistently drawn visitors, and tourism remains an essential part of the county's economy. Today, Lake County is known for its stunning mountains, pristine lakes, and thriving outdoor recreational opportunities, making it a sought-after destination for adventure enthusiasts and nature-lovers alike.

This timeline provides a glimpse into the major events and milestones that have shaped the history of Lake County, Colorado.

  • 1874 - The area that is now Lake County is established
  • 1875 - The City of Leadville is founded and quickly becomes a booming mining town
  • 1880 - The Denver, South Park, and Pacific Railroad is completed, connecting Leadville to Denver
  • 1881 - Leadville becomes the second most populous city in Colorado, with a population of over 20,000
  • 1893 - The Panic of 1893 leads to a decline in mining activity in Leadville
  • 1896 - Leadville experiences a brief revitalization with the discovery of new silver deposits
  • 1926 - The Climax Mine opens, becoming the world's largest producer of molybdenum
  • 1982 - The Climax Mine closes due to a decline in molybdenum prices
  • 2008 - The Climax Mine reopens after molybdenum prices increase