"Thar She Blows"

Castle Geyser

Hot spring between Castle and Grand

Grand Geyser after eruption


Grotto Geyser

Davis and Austin ready for Old Faithful

Old Faithful getting ready!

Thar she blows!

The last stop in our busy day was to the Old Faithful section of the park. We met for a ranger tour of some of the other geysers since we had time between Old Faithful's eruptions. We met at Castle Geyser which has a 12 ft cone of limestone, which makes it a cone geyser, that has taken between 5000 and 15000 years to form. It erupts between every 9 and 11 hours and we were fortunate to see the whole eruption which comes in two parts--a 20 minute water phase of between 60 and 90 feet, followed by a 40 minute steam phase.

At the same time Grand Geyser also erupted! Grand Geyser is a fountain geyser that erupts between every 8 to 12 hours, lasts about 10-12 minutes, and is between 150 to 180 feet high!

As the ranger began to tell us that these geysers are not related in eruptions, the other hot spring we were standing next to began to bubble extremely fast...makes you wonder!

Another geyser we saw was Grotto geyser which is also a fountain geyser that erupts about every 8 hours but is only about 10 feet high.

Last, but not least, is Old Faithful! It erupts about every 90 minutes, is a fountain geyser, averages about 130 feet high, lasts about 5 minutes, and spurts out between 3700 and 8400 gallons of water depending on length of eruption, at a temperature of of 204 degrees Fahrenheit!
Enjoy the pictures!