230 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
brook would furnish an ample supply for a plant of large capacity; any other water 
required could be obtained from the stream or from the lake by gravity; the bed of 
the brook at this point is about 18 feet below the normal level of the lake. 
South Olga Stream is the outlet of the lower of a chain of lakes lying in a broad 
low valley eastward of the southern end of Olga Bay. It Hows for about three- 
fourths of a mile in a general west by south direction, winding through a ravine in 
the tundra-covered mesa to the bay shore, then turns sharply to the southward par- 
allel to the beach, back of a bare narrow shingle barrier, and a quarter of a mile 
distant enters the bay. The outlet at the lake is about 30 feet wide, 12 to 14 inches 
Free-hand sketch of South Olga stream and lakes, Olga Bay, Alitak, Kadiak Island. 
deep, with a current of less than a knot an hour. The bed of the stream is broad, 
full of small bowlders and rocky outcrops in its upper third, generally of gravel and 
shingle, and quite gradual in descent; the fall between lake and exit being not more 
than 12 or 15 feet, salmon would not have the least difficulty in ascending, as the few 
rapids in the upper course are low and insignificant. About 400 yards before it 
reaches the beach the stream broadens out into a lagoon like pond 100 yards wide, 
with a sluggish current and marshy banks. This is a favorite breeding-place for 
mallard and teal ducks. At one time, apparently, the exit was at the western end 
of the lagoon, but the shingle bank, thrown up by some heavy westerly gale, has 
