Autódromo Eusebio Marcilla, A race track in Argentina.

The Autódromo Eusebio Marcilla is a 4,200-metre dirt-surfaced oval circuit on the 94-hectare grounds of the Auto Moto Club Junín, at the entrance to the Laguna de Gómez natural park. Its two long straights are joined by curved ends, with no grandstands or walls along the track; small pools of water lie inside and beside it, and green fields and a line of trees border the site.

The original 2,000 m circuit opened in 1947 and was paved in 1970. It is named after Junín-born driver Eusebio Marcilla (1914-1953). Between 2009 and 2011 the layout was rebuilt and lengthened to 4,200 m, and the redesigned track reopened on 7 August 2011 with Turismo Carretera and TC Pista races.

The track carries the name of a legendary Argentine racing driver and represents local passion for motorsport. On race days, people from the region gather to watch competitions and share their enthusiasm for speed and cars together.

The circuit entrance is at kilometre 7 of the road to the Laguna de Gómez natural park, opposite the Club de Planeadores; that road leaves National Route 7 at kilometre 259, heading southwest. The site lies 10 km from Junín's commercial and administrative centre and 16 km from Junín airport. The 94-hectare grounds of the Auto Moto Club Junín hold the track, and by January 2020 the circuit and the whole grounds stood abandoned.

The circuit's name honours Eusebio Marcilla, a Junín-born driver (1914-1953). The original 1947 track measured 2,000 m; the 2011 redesign added over 50 hectares to the site and stretched the lap to more than 4,200 m. The entrance sits at kilometre 7 of the road to Laguna de Gómez park, opposite the gliding club.