Bread-Bakers v004.n014.1

In the grocery stores we have up here in Canada, the only "Bread Flour" 
I can find is a mixture of white and whole wheat flour.  The package 
doesn't mention it has a higher gluten content then the all purpose 
flour.  I was wondering if ALL "Bread Flour" was a mixture of white 
and whole wheat flours or are there some bread flours out there that 
are all white with added gluten.

-Steve