142 Life of Upper Lake Region. 



pains to communicate the facts to a scientific 

 journal and so missed the scientific credit of 

 their publication. This Touchet horse, found 

 in 1866 in this old Pliocene lake, was, so far 

 as is known to the writer, the first true fossil 

 horse discovered in North America. 



THE DALLES GROUP. 



Another of these Pliocene lake beds calls 

 for notice and description. One standing on 

 the streets of The Dalles and looking south- 

 ward, will hardly fail to notice a well defined 

 ledge of gray sandstone set against the hills 

 a mile or so from the town, and extending 

 westward three or four miles. It is a rem- 

 nant of an old lake bed that once extended 

 across the valley till its further margin set 

 against the Klickitat mountain. What re- 

 mains of this lake bed is to-day an unbroken 

 level, although surrounded by many of the 

 grandest exhibitions of volcanic and earth- 

 quake power, proving that no great violence 

 has troubled the region since the waters of a 

 quiet lake deposited its sediment there. All 



