🇺🇸 USA · Radium, Colorado
♨ Temperature
45°C
⛰ Altitude
1980 m
⚗ pH
—
💧 TDS
—
🌊 Flow rate
—
📅 Established
—
✓ Verified on 2026-07-24
Radium Hot Springs is a natural geothermal seep along the banks of the Colorado River west of Kremmling, Colorado. The water emerges at around 45°C from canyon walls and flows into the river, creating a warm mixing zone that rafters and kayakers often pause to enjoy during river trips. The remote canyon setting, accessible primarily by boat or a long dirt road, keeps the site wonderfully undeveloped. The surrounding cliffs and ponderosa pine slopes of the lower Eagle River valley provide exceptional scenery.