Question: In what city was the Miss Universe pageant that Miss Ecuador 1969 competed in?

Context paragraphs:
Miss Ecuador 2017: Miss Ecuador 2017, the 63rd Miss Ecuador pageant, was held on April 22, 2017 in Babahoyo, Los Ríos.  Connie Jiménez, Miss Ecuador 2016 from Los Ríos crowned her successor Daniela Cepeda from Guayas at the end of the event.  The winner will represent Ecuador at Miss Universe 2017.

Miss Universe 1991: Miss Universe 1991, the 40th Miss Universe pageant, was held on May 17, 1991 at the Aladdin Theatre for the Performing Arts in Las Vegas, Nevada, USA.  Lupita Jones of Mexico crowned by Mona Grudt of Norway.  Seventy-three contestants competed in the 1991 Miss Universe pageant.

Ecuador at beauty pageants: The first beauty queen in Ecuador was Sara Chacón Zúñiga from Guayaquil, Guayas province in 1930.  She wore the brand and the crown of Miss Ecuador for very first time.  The contest was inactive for more than 20 years until 1955 when Leonor Carcache won the first modern title of Miss Ecuador, and became the first representative of the country to the Miss Universe pageant.

Miss Ecuador 2015: Miss Ecuador 2015, the 61st Miss Ecuador pageant, was held on March 14, 2015.  Alejandra Argudo, Miss Ecuador 2014 from Manabí crowned successor Francesca Cipriani from Guayas as Miss Ecuador 2015.  The winnerrepresented Ecuador at Miss Universe 2015, the 1st Runner-up competed at Miss International 2015, and the 2nd Runner participated at Miss Supranational 2015.

Miss Ecuador 2016: Miss Ecuador 2016, the 62nd Miss Ecuador pageant, was held on March 12, 2016 in Machala, El Oro.  Francesca Cipriani, Miss Ecuador 2015 from Guayas crowned her successor Connie Jiménez of Los Ríos at the end of the event.  The winner represented Ecuador at Miss Universe 2016.

Miss Ecuador 2011: Miss Ecuador 2011, the 57th Miss Ecuador pageant, was held on March 17, 2011.  Claudia Schiess, from Galapagos was crowned Miss Ecuador 2011 by the outgoing titleholder Lady Mina from Guayas.  The winner of "Miss Ecuador" represented her country at Miss Universe 2011.

Miss Ecuador 2001: The Miss Ecuador 2001 contest was held on March 22, 2001.  There were 13 candidates for the national title, the crown passed from Carolina Alfonso from Pichincha to Jéssica Bermúdez from Guayas, but the new Miss Ecuador 2001 was crowned by Ximena Aulestia who was the 1st Runner-up at Miss Ecuador 1969 and competed at Miss World 1969.  Jéssica competed at Miss Universe 2001.

Miss Ecuador 2012: Miss Ecuador 2012, the 58th Miss Ecuador pageant held at Puerto Lucía Yacht Club, La Libertad, Santa Elena, Ecuador on March 16, 2012.  Claudia Schiess from Galapagos crowned to her successor as Miss Ecuador 2012, Carolina Aguirre from Guayas.  The winner of "Miss Ecuador" represented her country at Miss Universe 2012.

Miss Ecuador 1969: The Miss Ecuador 1969 was held on June 12, 1991.  There were 16 candidates for the national title.  In the end of the night, Virginia Ramos from Guayas crowned to Rossana Vinueza from Guayas as Miss Ecuador 1969.  The Miss Ecuador competed at Miss Universe 1991.

Miss Ecuador 2013: Miss Ecuador 2013, the 59th Miss Ecuador pageant held on March 8, 2013.  Where Carolina Aguirre, from Guayas crowned her successor Constanza Báez, from Pichincha as Miss Ecuador 2013.  The winner of "Miss Ecuador" represented her country at Miss Universe 2013.

Supporting paragraphs: Miss Ecuador 1969 Miss Universe 1991
Answer: Las Vegas