Question: Huascarán is a mountain that is just shorter than what type of formation in La Rioja Province, Argentina?

Context paragraphs:
Capitán Vicente Almandos Almonacid Airport: Capitán Vicente Almandos Almonacid Airport (Spanish: "Aeropuerto de La Rioja - Capitán Vicente Almandos Almonacid" ) (IATA: IRJ, ICAO: SANL) is the main airport in La Rioja Province, Argentina serving the city of La Rioja.  In 2007, 41,155 passengers used La Rioja Airport.

Huascarán: Huascarán (] ) is a mountain in the Peruvian province of Yungay (Ancash Region), situated in the Cordillera Blanca range of the western Andes.  The highest southern summit of Huascarán (Huascarán Sur) is the highest point in Peru, the northern part of Andes (north of Lake Titicaca) and in all of the Earth's Tropics.  Huascarán is the fourth highest mountain in the Western Hemisphere and South America after Aconcagua, Ojos del Salado, and Monte Pissis.  The mountain was named after Huáscar, a 16th-century Inca emperor who was the Sapa Inca of the Inca empire.

National University of La Rioja: The National University of La Rioja (Spanish: "Universidad Nacional de La Rioja" , UNLAR) is an Argentine national university, situated in the city of La Rioja, capital of La Rioja Province.  Its precursor, the Provincial University of La Rioja, was established in 1972.

Monte Pissis: Monte Pissis is an extinct volcano in La Rioja Province, Argentina.  The mountain is the third-highest in the Western Hemisphere, and is located about 550 km north of Aconcagua.

Governor of La Rioja Province: The Governor of La Rioja is a citizen of La Rioja Province, Argentina, holding the office of governor for the corresponding period.  The governor is elected alongside a vice-governor.  Currently the governor of La Rioja is Sergio Casas.

Santo Domingo, La Rioja: Santo Domingo (La Rioja, Argentina) is a municipality and village in La Rioja Province in northwestern Argentina.

Chamical: Chamical is a small city in, and the seat of government of, Chamical Department in the south of La Rioja Province, Argentina.  With a population of 12,919 permanent residents at the 2010 census , up from 11,831 at the time of the 2001 census, it is the third-largest settlement in La Rioja Province after Chilecito.  It is home to the CELPA aerospace test center, founded in 1961 and operated by the Argentine Air Force.  The town, which is crossed by the Tirante wadi, lies on the (Spanish Wikipedia), around 140 km from La Rioja (2 hours by bus), and some 300 km from Córdoba (4 hours by bus).  This young urban habitation has been an important site in several stages of Argentine history during the past fifty years.

La Puntilla, La Rioja: La Puntilla (La Rioja) is a municipality and village in La Rioja Province in northwestern Argentina.

Rioja Alavesa: Rioja Alavesa (Basque: "Arabako Errioxa" ), officially Cuadrilla de Laguardia-Rioja Alavesa is one of seven "comarcas" that make up the province of Álava, Spain.  It covers an area of 315.83 km² with a population of 11,360 people (2010).  The capital lies at Laguardia.  It is part of a notable wine growing region.  Its northern boundary is formed by the Sierra de Cantabria and Sierra de Toloño, two mountain ranges that separate it from the rest of Álava.  To the south, its geographical limit is marked by the Ebro River, its border with the neighboring autonomous community of La Rioja.  "La Sonsierra riojana," which contains the municipalities of Ábalos and San Vicente de la Sonsierra, is located north of the Ebro River.  Although geographically part of the river's left bank, this area technically belongs to the autonomous community of La Rioja.  In la Sonsierra region, La Rioja Alavesa is divided in two parts by La Rioja proper: Labastida, located to the west, and the remaining Rioja Alavesa municipalities to the east.  The border with Navarra to the east are not based on clearly defined geographical features like the aforementioned boundaries.

Independiente de La Rioja: Independiente de La Rioja are an Argentine Football club, whose home town is La Rioja, in the La Rioja Province of Argentina.  They currently play in Torneo Argentino C

Supporting paragraphs: Huascarán Monte Pissis
Answer: extinct volcano