Finding Lava Flows in Yellowstone (Yellowstone Monthly Update – May 2025)

If you want to find a lava flow in Yellowstone, look to the trees! The vegetation is telling us more than you might think.

YVO Scientist-in-Charge Mike Poland reveals how vegetation can be used to map geology in this month's update from the Yellowstone Volcano Observatory.

During the month of April 2025, the University of Utah Seismograph Stations, which monitors and operates the Yellowstone seismic network, located 46 earthquakes; the largest was a magnitude 1.8. Deformation trends (subsidence) continue without significant changes. Steamboat Geyser erupted on April 14—its second major water eruption of 2025.

Watch the video to learn more!