Echo Lk.-Near Greenwater, WA

Has anyone been fishing at Echo Lake lately (outside of
Greenwater...Corral Pass area) ?. Looking at the maps it appears to be
a fairly large lake and I was wondering if anyone has tried fishing
here lately? Went as far as Hidden Lake the other day, very small and
shallow, on the way to Echo Lake and found it to be completely free of
any fish life. If any body out there wants to share any information
that would be much appreciated.

Thanks in advance,
ckkap