National Primary Route 1, formally known as Carretera Interamericana Norte (North Interamerican Road), is the northern segment of the Pan-American Highway (locally in Central America known as the Inter-American Highway) that traverses Costa Rica.
La Carretera Interamericana Norte, enumerada como Ruta Nacional Primaria 1 o simplemente Ruta 1, es uno de los dos tramos de la Carretera Panamericana que atraviesan Costa Rica, siendo el otro la Carretera Interamericana Sur (Ruta 2). Es una carretera primaria de la red vial costarricense. Se divide en tres segmentos: Autopista General Cañas (San José-Alajuela), Autopista Bernardo Soto (Alajuela-San Ramón), Carretera Interamericana Norte (San Ramón-Peñas Blancas). (es)
National Primary Route 1, formally known as Carretera Interamericana Norte (North Interamerican Road), is the northern segment of the Pan-American Highway (locally in Central America known as the Inter-American Highway) that traverses Costa Rica. (en)