Miles City Saddlery | Miles City

Pinkerton Hot Springs is a natural geothermal feature located approximately 15 miles north of Durango, Colorado, along U.S. Highway 550.

Visual Characteristics

The springs manifest as a series of travertine terraces, formed by the deposition of calcium carbonate from the mineral-rich water. The terraces exhibit a range of colors, primarily pale orange, white, and pink, due to iron oxides and other mineral impurities. The water pools are shallow, with some areas actively bubbling. Vegetation around the springs consists of sparse grasses and hardy desert plants.

Location & Access Logistics

Access is directly from U.S. Highway 550, approximately 15 miles north of Durango. A small, unpaved pull-off area is available on the west side of the highway. Parking is limited to a few vehicles. No public transportation serves this specific location.

Historical & Ecological Origin

The springs are a result of geothermal activity where hot water, heated by the Earth's interior, rises to the surface. As the water cools and evaporates, it precipitates dissolved minerals, primarily calcium carbonate, creating the travertine formations over thousands of years. The area is classified as a hot spring system within a semi-arid environment.

Key Highlights & Activities

Observation of the travertine formations is the primary activity. Visitors can walk around the perimeter of the terraces. Soaking in the springs is not permitted due to the shallow depth and active mineral deposition.

Infrastructure & Amenities

There are no developed infrastructure or amenities at Pinkerton Hot Springs. Restrooms, shade, food vendors, and cell phone signal are not available at the site. Visitors should come prepared with water and appropriate sun protection.

Best Time to Visit

The best time for photography is during the early morning or late afternoon when the low-angle sunlight enhances the colors of the travertine. Spring and fall offer the most comfortable temperatures for visiting. Summer can be very hot.

Facts & Legends

The pink coloration of the travertine is attributed to the presence of thermophilic algae and bacteria that thrive in the warm, mineral-rich water, along with iron oxides. Local lore suggests the springs were once used by Native American tribes for their perceived medicinal properties, though no formal archaeological evidence supports extensive use.

Nearby Landmarks

• Durango & Silverton Narrow Gauge Railroad Museum (15km South)
• Animas River Trail (16km South)
• Fort Lewis College (17km South)
• Purgatory Resort (25km North)