According to reports, 22-year-old Jordan Linn Graham is accused of second-degree murder of her 25-year-old husband Cody Lee Johnson.
Reports say that, following an argument, Linn pushed Cody off a cliff-top in the Glacier national park in Flathead County, Montana, where they had gone for hiking on July 7.
Initially, Linn lied before police saying that her husband has gone missing, but later, she confessed to the crime.
Linn, who appeared in court in the US state of Montana on Monday to face the charges of her husband's murder, faces life in prison if convicted.
The police affidavit publishedv in the Missoulian newspaper said, "Graham stated their argument intensified. At one point in time during their arguing, Graham turned and began to walk away. She stated Johnson grabbed her by the arm."
Initially, Linn lied before police saying that her husband has gone missing.
"After removing Johnson's hand from her arm, Graham stated she could have just walked away, but due to her anger, she pushed Johnson with both hands in the back and as a result, he fell face first off the cliff," it added.
Cody's body was found in the Montana park on July 12 and an autopsy was conducted on July 19.
Cody's family friend Tracey Maness told the Missoulian that "nobody is shocked at all" that Linn was suspected in her husband's murder.
"She'd been telling people she knew she never wanted to be married, she just wanted to have a wedding, and that's apparently what they were arguing about," she told the newspaper.