FRESH-WATER MUSSEL RESOURCES 
OF THE 
UNITED STATES 
Map ip d distribution and exten} of the 
a MUsSe/ fishery Le! Ne abe where Buregu 
k 
J A has propagated, ILS SO/S. 
ZN 
pee ublica, 
R ive, 
NOTE: 
Primary Drainage Bo- 
sin Bou ndartes 
Mussel! Investigations 
e Musse! Propagation 
bifbee ge 
123 £%. Tons of Shells token 
in Rivers during /9/2, 
1913, or 1914. 
~ Torr 
SCALE 
STATUTE MILES 
ee 
100 200 300 
