on south side of Shoshone Lake. Geological obser- 
vations omitted. 
Came upon Gannett and Tom on Mount Sheridan at 
10 o'clock. Descended to Hart Lake and camped near 
the Geyser Basin. Woodland Group, Hart Lake, Geyser 
Basin. Stockade Geyser; Rustic Geyser. Eruption at 
7:30, August 21; at 9:30, August 21; at 9; 45, same 
date; again 12 minutes later. Saw the eruption 
of the principal geyser. Heavy masses of water 
thrown 6 to 10 feet in height and a few jets to 
15 or 20 feet in height, hater in basin reduced in 
level only one foot. Lasted one or two minutes, 
another eruption heard at 10:30, and so on. 
On Flat Mountain j geological observations 
omitted. Extended geyser observations omitted. 
The Gorgon Geyser keeps up a constant groaning, 
thrashing about in gigantic yet unavailing struggle.? 
to be free. Other geyser notes omitted. 
Camp on Hart Lake . Had breakfast noderately 
early. Took a few geyser observations, saddled 
up and started for Flat Mountain. Followed a 
sand bar around the border of the lake for nearly 
half a mile. Through the bar near camp flows 
a i o derate ly large creek of clear water. Outside 
of this bar is a large meadow area without lagoons. 
The creek meanders through these meadows. 
There 
