This is the Valley containing Cerro Capicua and Cerro La Junta. It is the next valley up from Arco Iris, opposite Valle Trinidad and Anfiteatro and one valley down from Paloma
Will depend on which formation/route you are climbing, but head out of Camping La Junta/Trawen going north and find signs for Arco Iris/Capicua/La Junta, follow signs for the appropriate formations 0.5-2hrs depending on destination.