Your friend would need to purchase a big game/trophy license to act as a resident guide, which he likely will. Here's the statute: 23-2-401.
(b) Any resident possessing a valid resident big or trophy game animal license may apply for and receive a resident guide license. The resident guide license shall be issued without charge or bond by the commission, any district supervisor or resident game warden upon receipt of an affidavit from the resident stating the names and addresses of the nonresident hunters to be guided, the game to be hunted, the area to be hunted, and that the resident has not received nor will accept directly or indirectly any compensation for his services as a guide. A resident guide shall not guide more than two (2) nonresident hunters in any calendar year on any national forest, wilderness area, national game refuge, or national park, except as provided in W.S. 23-2-401, nor shall he accept any compensation or gratuity for his services. An exchange of guide services shall not be considered compensation for the purposes of this section. The name and license number of the nonresident hunter shall be placed on the back of the resident guide license and stamped or signed by the issuer.
