Hidden Pines Corral is the abandoned ranch house in the Jackson County woods where Joel and Tommy catch up with Ellie after she rides away from the dam. It is the setting of the Ranch House section of Tommy's Dam, ending in a bandit ambush.
Ellie confronts Joel for planning to leave her with Tommy and brings up Sarah. Bandits attack the house, and the brothers kill them all. On the ride back, Joel decides to take Ellie on himself, and Tommy points them to the Fireflies at the University of Eastern Colorado.