Yellowstone Lake
Calm Yellowstone Lake in Yellowstone National Park, with a distant tree-lined island and pine branches in the foreground.
Shimmering Yellowstone Lake seen from a rocky shore with a wooden boardwalk, a lone pine, and a bright, cloudy sky.
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Yellowstone Lake

Natural Attr★★★★☆
Last Updated: January 2026

Overview

About This Attraction

Turquoise water stretches across a vast caldera basin, rimmed by forested ridges and a jagged shoreline. That color hides a volcanic heartbeat—vents and lava remnants lie beneath the lakebed, overlaid by glacial shaping that tilts the basin southward. This is Yellowstone Lake: a caldera lake whose surface records a turbulent geologic history.

Best Time to Visit

Late May through early September for access and boating; early June offers snow-capped peaks contrasting with a thawing lake.

Visitor Tips

  • Parking lots along the Grand Loop Road fill by morning in peak season; plan to arrive early.
  • Dress for wind; a jacket is essential when viewing from pull-offs.
  • Stay on designated routes; hydrothermal vents are hazardous and the lakebed hosts extreme temperatures.
  • Bear spray and safe distances from wildlife (bears/wolves 100 yd, others 25 yd) are advised.