NORTHWESTERN LAKES OF THE UNITED STATES. 
91 
LAKE PEND OREILLE, IDAHO. 
This lake ranks first in size and fourth in depth among those included in this 
study. It is situated in Bonner and Kootenai counties, Idaho. Its greatest length 
is 49 km. (30.4 miles), and it has 595 km. (372 miles) of shore line. The elevation 
of the surface of the lake is 625 m. (2,050 feet). The southern part of the lake lies 
in a beautiful valley between mountains rising to 1,524 m. (5,000 feet) on each side. 
Most of the shores are steep, leaving few places where boats may land. Cape 
Horn rises abruptly from the lake to 1,373 m. (4,503 feet), and across the bay 
Chilco Mountain reaches a height of 1,678 m. (5,503 feet). The northern end of the 
