Yellowstone National Park is increasing its fishing permit fees slightly this season.

The new fee structure will include a three-day permit for $18, a 7-day permit for $25 and an annual permit for $40. Current permit fees are $15 for three days, $20 for seven and $35 for the annual permit. Permits for anglers 15 years of age and younger will remain free.

Money from the fees are used to help enhance the park's fisheries management program and to begin implementing native fish conservation.

Fishing permit fees have been charged in Yellowstone since 1993. They were last changed in 2004.

Yellowstone's 2012 fishing season begins May 26 and extends through and includes the first Sunday in November.

More From Newstalk KGVO 1290 AM & 98.3 FM