SCALE Of MILES 



POINT Of TAGGING 



^- TAGGED LAMPREfS HLCOVERE 



IN STREAMS 



— TAGGED LAUPBEY5 RECOVERED 

 IN THE LAKE 



BASE MAP OFFICIAL MICH STATE H'tAT 

 MOP FOR I9SO 



^lgure. — 10. --Small-scale chart of upper Great ^akee showing general 

 dispersion of marked lampreys from blockaded spawning run. 



