I02 The American Geologist. February, 1903. 
Silicic acid 0.0201 
Phosphoric acid ) 
Potassa I trace 
Lithia \ 
. 3726 
These springs are not used for bathing purposes. The 
reason is that the more health-giving Jemez Hot Springs are 
too near. 
The Sulphttrs. — To the north of Pelado about twenty-five 
miles to the northeast of the Soda Dam and the Jemez hot 
springs (Ojos Calientes) on the very top of the Jemez Plateau 
are the famous sulphur springs and still further to the north- 
east are the San Antonio springs. The latter attain a temper- 
ature about the same as that of the Indian springs to the east 
of the Jemez river. The Sulphur springs deposit sulphur in 
considerable quantity as the name indicates ; and their site was 
obtained as a mineral claim. They are owned by the Oteros, 
and their value is now estimated at $100,000.00. Bath houses 
and accommodations for health seekers .have been erected. A 
stage runs from Thornton on the Santa Fe from the east to 
this place, and one also reaches it from the south via Albu- 
querque. 
The temperature of the waters of these springs is close to 
the boiling point.^' 
General Survey of the Spfings of this Region. — As we 
have seen, most of the springs in the Salt river and upper 
Jemez country are along faults or granite dikes where the un- 
der ground waters are checked in their downward course and 
forced to the surface ; but as yet we are unable to see why some 
of the groups of springs are hot ; others a bathing tempera- 
ture ; and still others cold. Let us examine the facts and see 
if we can obtain a solution. 
The springs on the top of the plateau to the north of 
Pelado approach boiling point, while the Jemez hot springs, 
about the same distance to the southwest of that mountain, are 
i68°F. The San Antonio springs twelve miles to the northeast 
of the Sulphurs are only a bathing temperature, as are also 
the Philip's springs south of the Jemez mountains, and eigh- 
* The writer never visited this group of springs, but obtained his informa- 
tion from a gentleman who once had charge of them. 
