60 SURVEY OF IDAHO-MONTANA BOUNDARY LINE. [bull. no. 
two portions of the boundary line which seem to be adequately marked, 
one of them being from Point Roberts, on Juan de Fuca Strait, 
eastward for a distance of about 41 miles, and the other being from 
Similkameen River, across the northern boundary of what was for- 
merly the Colville Indian Reservation, to the Columbia River, a dis- 
tance of about 91 miles ; the eastern part of this latter portion, however, 
is not so well marked as the western part. 
The portions which are inadequately marked — in fact, not marked 
at all — comprise intervals as follows : 
Portions of international boundary west of the summit of the Rocky Mountains and 
the Mooyie Trail monument which are not marked. 
Miles 
(approximate). 
West slope of Cascade Mountains 16 
Across summit of Cascade Mountains to Pasayten River 54 
Pasayten River to one hundred and twentieth meridian 24 
One hundred and twentieth meridian to Similkameen River 15 
Columbia River to Clark Fork 10 
Clark Fork to Kootenai Mountain 11 
Kootenai Mountain to Kootenai River . 28 
Kootenai River to Mooyie Trad _■_._ . . _ 15 
Mooyie River to Yaak River 25 
Yaak River to summit west of Kootenai River 17 
Summit west of Kootenai River to Kootenai River 5 
Koo:enai River to summit 5 
Summit to Wig warn River 14 
Wigwam River to Flathead River 14 
Flathead River to Kishemeen Creek 4 
Kishemeen Creek to summit of Rocky Mountains . . 13 
There is no question as to the desirability of properly marking the 
boundary line, although it is true that the unmarked portions are in 
a rough, mountainous, and unsettled section, and the expense and 
labor connected with making the necessary resurveys and placing 
monuments would be large. 
When the boundary line between Idaho and Montana was run 
northward to the international boundary, it was not possible to locate 
its terminal point as satisfactorily as might have been desired, because 
of the fact that there was no monument on the international bound- 
ary within a reasonable distance with which a connection could be 
made. The same is true of the boundary line between Washington 
and Idaho, and also of a guide meridian run by the Geological Survey 
northward from the thirteenth standard parallel in Idaho. The 
Washington Forest Reserve, the Priest River Forest Reserve, and 
the Flathead Forest Reserve abut against this boundary, and in 
making the topographic survey of these reserves, as well as in pro- 
jecting the public-land lines northward, it is very important that 
there should be well-defined monuments to which these surveys can 
be connected. There are, of course, many other apparent reasons 
