Are there any ways to stop my dog from digging holes in my yard?

As stated in the question, Is there any way to stop my German Shorthaired Poniter from digging multiple holes in my yard? I don't want to keep her in her kennel when I'm gone, but I'd also rather not have to go around with the wheel barrel filling in holes after her. Help? :S All answers appreciated.
**Edit**
I know she'll get bored, etc. but shes got 4 scres to run around on. We have an electric fence and everything. Figured I'd let osme people know. Thanks to all whove answered.