Missing man pages: gnupg

[Daniel Underwood]

Coming from Linux, I'm accustomed to using gpg. I installed the gnupg
port (which I assume is virtually the same as Linux gpg).

Doing
$ man gnupg
returns nothing. Doing
$ which gnupg
reveals that the port (or at least the binary) is in fact installed.
But where are the gnupg man pages? If truly not installed, how can I
install them?

In general, how does one deal with missing man pages? One reason I
left Linux (*officially* yesterday) is fragmented documentation. So
this is extremely important to me.

TIA,
Daniel