April 24, 2008

RiverSource Life Insurance Company
70100 Ameriprise Financial Center
Minneapolis, MN 55474

RE: Registration Statement on Form N-4
    File No.: 033-47302

Ladies and Gentlemen:

I am familiar with the establishment of the RiverSource Account F ("Account"),
which is a separate account of RiverSource Life Insurance Company ("Company")
established by the Company's Board of Directors according to applicable
insurance law. I also am familiar with the above-referenced registration
Statement filed by the Company on behalf of the Account with the Securities and
Exchange Commission.

I have made such examination of law and examined such documents and records as
in my judgment are necessary and appropriate to enable me to give the following
opinion:

1. The Company is duly incorporated, validly existing and in good standing under
applicable state law and is duly licensed or qualified to do business in each
jurisdiction where it transacts business. The Company has all corporate powers
required to carry on its business and to issue the contracts.

2. The Account is a validly created and existing separate account of the Company
and is duly authorized to issue the securities registered.

3. The contracts issued by the Company, when offered and sold in accordance with
the prospectus contained in the Registration Statement and in compliance with
applicable law, will be legally issued and represent binding obligations of the
Company in accordance with their terms.

I hereby consent to the filing of this opinion as an exhibit to the Registration
Statement.

Sincerely,


/s/ Elisabeth A. Dahl
-------------------------------------
Elisabeth A. Dahl
Assistant General Counsel
(612) 678-0175