Mike, the Boulder Peak link has been added. I grabbed this info from elsewhere and it's been some time since I did so my memory may not serve me perfectly, but I believe the A and B are simply added when there are multiple peaks in the state with the same name.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe