Ralston’s father, Larry Ralston, told The Associated Press the couple had “a heated argument.”
Later, he told reporters, “They’re two good parents involved here that care very much for their young daughter.”
Each charge against Shannon carries a fine of up to $999 and a sentence of up to a year in jail upon conviction.
Ralston cut off his forearm to free himself from a dislodged boulder in a Utah canyon in 2003.
He was “canyoneering” — making his way down a narrow canyon — at the time. After five days with little food and water, he broke his arm and then amputated it with a knife to escape.
He detailed his struggles in a book, “Between a Rock and Hard Place,” which was adapted into the Oscar-nominated “127 Hours.”
Ralston became a celebrity, making inspirational speeches and championing environmental causes.
He also continued his adventurous life using prosthetics he helped develop. He completed a nine-year project to scale the highest point in all 50 states and became the first person to solo climb all 59 of Colorado’s 14,000-foot peaks in winter.