DEscuirnoN of camps. 365 



the Sharp-tailed Grouse {Pedioscetes columbianus) was very abundant. The 

 principal species met with along this creek were, besides that above-named, 

 the followingr: — 



o 



Tardus guttatas . . One specimen. 



Parus septentrionalis Rare. 



Zoiiotricllia iiiU'iniedia Abundant. 



Juiico oregoiius Abundant. 



MeIos])iza f'allax . Abundant. 



Melospiza liiicolni Abundant. 



Pi|)ilo cliloi urus Common. 



Passerculus alaudinus Abundant. 



Emj)idonax ob.scurus Common. 



Spbyrapicu.s uuclialis .,. ..Rare. 



Picus barrisi Rare. 



Picus gairdncri Rare. 



Autrostomii.s uuttali Common. 



31. Clover Mountains (September 19, 1868). — On the above date, a 

 trip was made to near the summit of the main peak of this range by follow- 

 ing Trout Creek from our camp up the canon to its head, returning by 

 another cafion to the southward. The summit of this peak is very lofty, 

 rising considerably above the timber-line, or to an altitude of near 12,000 

 feet. Large fields of perpetual snow lay in the ravines and behind masses 

 of rock, and in several places below the bai-e summit were quite extensive 

 pine woods. Nothing of interest, ornithologically, resulted from this exceed- 

 ingly laborious day's work, however, only the usual .species being observed. 

 The commoner species of the alpine woods were Sitta canadensis, Parus 

 monUimts, and Junco oregonus, while at the head of one of the canons, where 

 pines and aspens were intermingled, Canace obscwra was very abundant. 



32. Holmes's Creek, near Thousand Spring Valley (September 22-26. 

 Altitude, about Q, 000 feet). — Observations at this camp were confined chiefly 

 to a small valley nestled among a range of low hills separating the valley 

 of the upper Humboldt from Thousand Spring Valley. Around a spring, 

 which supplied the camp with water, grew a thicket of tall willows and 

 aspens, while along the rivulet from this spring grew willow bushes. Else- 

 where, only the ordinary sage-brush plants flourished. In the thickets 

 above mentioned, Dendrosca townsendi, Sphyrapicus nuchalis, and Nydale 

 acadica were obtained. 



33. ''City of Rocks,"' Southern Idaho (October 2, 1868).— The hills 



' This locality derives its name from a remarkable valley among the monntains 

 .close by, where immense piles of granite, rising Irom the floor of the valley, vaguely rep- 

 resent a city of castles, domes, and mosques. 



