The USS Appalachia (NCC-52136) was a Federation starship that was in service during the late 24th century.
In 2373, the Appalachia defended Earth against the second Borg invasion at the Battle of Sector 001. (Star Trek: First Contact)
Background
The CGI rendering of this ship would appear in Star Trek: The Next Generation Sketchbook: The Movies. According to the Star Trek Encyclopedia, the class of this starship is Steamrunner class.
The ship was named after the Appalachian Mountains in eastern North America.