EXHIBIT 5.6

[Marston Letterhead]

May 1, 2006

In connection with the Registration Statement on Form F-10 filed by Gold
Reserve Inc., as such may thereafter be amended or supplemented, and in the
prospectus contained therein, I, Susan R. Poos, P.E., hereby consent to the
use of my name in connection with preparation of the reports references in
such registration statement and prospectus.

Yours truly,

/s/ Susan R. Poos

Susan R. Poos, P.E.
Mining Consultant & Manager, Denver Office