292 



EEPOET UNITED STATES GEOLOGICAL SURVEY. 



waterway leadiDg from the geyser is lined with tints of salmon color 

 and lemon-yellow. The water in this geyser rises and falls regularly, 

 and after the basin is full bulges slightly. It has periods of geyseric 

 action, which were not determined. It was seen in action by some of 

 the party, and is said by them to have sent up a splashing mass of 

 water to a height of 10 or 15 feet. Above the Deluge Geyser, on the 

 same side of the creek, are a number of pools and springs. Among them 

 a bright-red mud pool, in which the mud is very thin and actively boil- 

 ing. On the oppssite side of the creek are several active springs, and 

 back of them a group (No. 10) of large pools, mud springs, and turbid 

 X)ools. Among them is a bulging spring with a white basin and bluish- 

 tinted water. 



Crossing the hill back of the Deluge Geyser and ascending the slope 

 beyond to the head of a white gulch, we find a collection of steam 

 holes and sizzling holes which mark the site of once very active springs. 

 There are now. several bubbling springs with wine-colored basins, in 

 which the escaping water makes a sound like frying. Near it is a pool 

 8 feet long, with a temperature of 170° F., and opposite is a yellowish- 

 lined pot 3 feet in diameter, with a dozen or more simmering spots with 

 temperatilres of 177° F. Above are holes with temperatures of 165^ F., 

 and below a clay mass full of simmering spots. These springs are about 

 500 feet above the level of the lake. Just below them is a large white 

 flat, in which are about 24 mud cones from a foot to 2 feet in height, 

 most of them white, some are tipped with red and yellow. Most of them 

 are dry, others steam or spit out mud, and in the flat around them are 

 steam vents and simmering holes. 



The following table gives the springs of the group : 



Table of the Upper Group — Witch Creek Springs. 



Number and name. 



Iand2- 

 3 



5. Spike Geyser . 



8. Deluge Geyaer. 



10. 



14. 



Size, &o. 



30 hy 60 feet 



75 by 100 feet 



a is cone, 2 feet high ; b is cone, 

 above 1 foot high ; c is 5 

 inches in height ; d is about 

 6 inches high ; all occupy 

 space 3 feet diameter. 



/A collection of yellow-lined 

 beaded spntterers. 



e White pool 



i Small hole near/ 



a 5 feet diameter 



b 2 feet diameter 



c 18 inches diameter. 



2 pools, each 5 feet diameter . 



6 is 8 feet long 



c is 3 feet diameter. 



E 3 

 H 



elS2 

 il98 

 a 162 



6185 

 clS4 



180 

 170 



187 

 a 165 

 &170 

 cl77 



Hi 



12 m. 



Itemarks. 



Mud pots and steam vents. 

 Pool, light mud color, pinkish 



at edges. 

 Light-greenish pool. 



Main geyser is a collection of 

 spikes and cones; e, /, and 

 i are holes on the same plat- 

 form. 



Quiet bubbler in funnel-like 

 basin across creek from No. 5. 



b is bulger. 



c has rising and falling of wafer. 



Boiling spring in ravine oppo- 

 site 5 and 0. 



Beautiful basin, with orna- 

 mented edge, and rosettes 

 bordering outside. 



Clear- water pools, with white 

 basins and white scalloped 

 borders; greenish-gray tinted 

 water. 



Collection of pools, mud 

 springs, and one bulging 

 spring. Some are clear, 

 others milky or tiu'bid. 



Opposite Deluge. 



Clear white boiling spring. 



I These are atthe head of White 



ij Gulch. 



Mnd cones below springs of 

 No. 13. 



