LeAnn Rimes is planning to marry on a private ranch
The `Can`t Fight the Moonlight` singer is to tie the knot with fiance Eddie Cibrian later this year and has been inquiring about a number of venues in the mountainous US state.
A source said: "LeAnn has approached a number of owners of private ranches about a May or June wedding."
LeAnn and Eddie took a romantic break in Montana last August so it is place close to both of their hearts.
She wrote on her twitter page at the time: "Going to lock myself up in my cabin with Eddie Cibrian, if you know what I mean.
"Montana is the most peaceful and beautiful place I could be [with Eddie] right now. We have NO service other than the main lodge where we are staying, so we are escaping . . . Montana is magical! Peace it brings! (sic)"
LeAnn, 28, confirmed her engagement to 37-year-old Eddie over the Christmas period after he proposed while they holidayed in Los Angeles.
She tweeted: "For those who haven`t read, Eddie and I got engaged over the holidays. That`s the news. It`s for real this tine and the first time EVER!
"Thank you for all your well wishes!! We are extremely excited and look forward to a beautiful future. It`s been an incredible last few days, I was shocked!!! We are blessed, our families are so happy and our lives are filled with love. (sic)"
LeAnn met Eddie when they worked on TV movie `Northern Lights` in 2008 and were both married to other people.
The singer-and-actress` admission to an affair with Eddie was unpopular with many of her fans, but her divorce was finalised in June and ex-husband Dean Sheremet has since got engaged again.
Eddie has two children - Mason, seven, and Jake, three - with his ex-wife, make-up artist-and-model Brandi Glanville.