Flood Geyser is located along the main highway in the Midway Geyser Basin of Yellowstone. Flood has intervals of 1 to 2 hours with a duration of 2 to 6 minutes. The interval after the eruption shown in the movie was 1 hour and 35 minutes.
Flood Geyser:
Image copyright 1999, Michael Frazier. All rights reserved.