Hi, Im new to this site, really cool to see this many Washington hunters in one place!
I had a question about mineral lick set ups and cows.
In my area I occasionally notice white block style blocks on national forrest land.  I assume it is for the cattle that range there in the summer.  Because of this I've never thought to develop my own site.
Im interested in putting together a good set up in cattle country.  Is it better to use a block rather than loose mineral?  The last thing I want is to have cows taking a dump in the middle of a mineral lick 

is it feasible to target deer and not cows?
Thanks!
-Joe