HotPrimitive

Cistern Spring

WY199°F

About Cistern Spring

Cistern Spring sits deep in Yellowstone’s Norris Geyser Basin, radiating intense heat and vivid hues from its mineral-rich waters. This primitive hot spring captivates with its steamy overflow and stark surroundings of bleached dead trees, shaped by the silica-laden water. Connected underground to Steamboat Geyser, it offers a rare glimpse into Yellowstone’s dynamic geothermal activity.

Getting There

Accessing Cistern Spring requires a trek into the Back Basin area of Norris Geyser Basin, typically via marked trails from the park’s main boardwalks. The hike is moderate and the terrain uneven, so sturdy footwear is recommended. Parking is available near the Norris Museum, but expect some walking before reaching the spring.

What to Expect

The water at Cistern Spring is far too hot for swimming, averaging around 199°F, making it a striking visual rather than a soak spot. Steam billows upward, creating an otherworldly atmosphere amid the array of geothermal features nearby. Crowds tend to be moderate here, especially during peak season, with no developed facilities immediately adjacent.

Tips for Visitors

Visit early in the day to avoid heavier crowds and bring water and sun protection, as shade is limited. Stay on designated trails to protect both yourself and this fragile environment, and note there are no entry fees specifically for Norris Geyser Basin beyond park admission. Admire the spring’s raw energy but respect its dangerous temperatures.

Last updated December 20, 2025
Cistern Spring

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