12 BULLETIN NO. 2, ENTOMOLOGICAL DIVISION. 
July 11.— Early this morning we started for the Little Eocky Mount- 
ains, which lie about 25 or 30 miles to the northward. In going out to 
them we at first wound about among the pine-dotted bills for three or 
four hours, and finally came out ou a high plateau covered with good 
grasses. This sloped gradually back to the base of the mountains, where 
it is quite well watered by various small streams that issue from the 
canons and sink into the adjoining flats. There are several thousands 
of acres of good grazing land, with smaller areas capable of tillage, in 
the immediate vicinity of the mountains, but as the plains are traversed 
the soil becomes less fertile and more arid as well as alkaline. 
Away from the mountains the summer rains are few and the winter 
snow-storms severe.. While this section appears to be pretty well inter- 
spersed with bad-lands and alkali wastes, it is in reality one of the best 
grazing regions in Montana, being the chief winter range for the buf- 
falo and antelope, as well as other game. 
During the present and for several seasons past but very few migra- 
tory locusts have been noticed here or at any point between the Mis- 
souri and Milk Eivers, but during the years of great abundance of these 
insects this locality was one of its favorite haunts. Other species were 
never very numerous, and at times are even scarce. 
This season I was unable to find more than two or three dozen speci- 
mens of locusts duriug the day and a half spent in collecting at this 
point. 
These mountains are well timbered in most parts, but not with trees 
of large size or free of limbs. Other vegetation (as shrubs and herbs) 
is quite abundant, as in all other mountainous or rolling countries where 
a considerable amount of rain falls. The rocks are chiefly slates, sand- 
stone, and limestone, and show some signs of volcanic action. There 
are some quartz leads bearing traces of iron, lead, and copper, as well 
as some of the precious metals. There are several thermal springs in 
the vicinity of the highest peak of the range. This peak is the only one 
which we ascended, and that only a little over half way up. We gave 
this peak the name of our esteemed chief, who has done so much in 
ascertaining the facts and in solving economic problems in reference to 
the Eocky Mountain Locust. Riley's Peak stands out in front of the 
main range near the head of Little Eocky Creek and to the right — one 
of the most imposing land marks for many miles about. It was on the 
lower slopes of this mountain that we killed two bears — one Silver- 
and tipped the other a Cinnamon — after an exciting skirmish with three 
of these denizens of the mountains. 
These springs of which I spoke above are not hot, but of about the 
temperature of brook water in summer. 
Our collections at this point were small, as insects of all orders ap- 
peared to be very scarce. 
July 17; — To-day our journey lay along a piece of river very much 
superior to that passed heretofore. Numerous signs of volcanic action 
