 USS Catawba was a single @-@ turreted Canonicus @-@ class monitor built for the Union Navy during the American Civil War . Completed shortly after the end of the war , Catawba was laid up until sold to her builders in 1868 , and then resold to Peru . Renamed Atahualpa , the ship participated in the defense of Callao during the War of the Pacific .
 sierp 1879 , she was wrecked on the rocks of Callao , and later raised and rebuilt . She was scrapped in 1886 .
The Canonicus class was a group of 15 ironclad monitors built for the Union