Geysers are hot ... and cool

So, perhaps you have heard about all of these geothermal things at Yellowstone - geysers, hot springs, flumes, pools to name a few.  We checked out a lot of them today, including the famous Old Faithful. 

The legendary geyser was cool (and erupted on the dot at the predicted time of 3:52), but the show stopper was the Castle Geyser - it blew away the competition (get it?  Geothermal humor). This baby blew for 40+ minutes!  

We also visited various other hot spots (too numerous to name) with  otherworldly appearances.  Charlie called it "insane", while I just thought if looked like another planet.  Way cool stuff!