| Official Name: | Juan José Ríos |
| Nickname: | Che Ríos and JJR |
| Pushpin Map: | Mexico |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: | Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Sinaloa |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Guasave and Ahome |
| Leader Title: | Síndico |
| Leader Name: | Luis Fernando Chinchillas Cota |
| Established Title: | Founded in |
| Established Date: | 21 September 1938 (as Ejido Las Vacas) 21 February 1955 (as Sindicatura of J.J. Ríos) 13 July 1989 (as City of J.J. Ríos) |
| Established Title2: | Founded by |
| Established Date2: | Lázaro Cárdenas del Río |
| Unit Pref: | Metric |
| Population As Of: | 2010 |
| Population Total: | 27,938[1] |
| Timezone: | Mountain Standard Time |
| Utc Offset: | -7 |
| Coordinates: | 25.7572°N -108.8217°W |
| Elevation M: | 12 |
| Postal Code: | 81110 |
| Website: | Government page |
Juan José Ríos (pronounced as /es/) is an agricultural city located in Northern Sinaloa, Mexico. It is divided in two municipalities, where its major part is located in Guasave Municipality,[2] and the rest is in Ahome Municipality.[3] It had a population of 27,938 inhabitants (including city's both parts in Guasave and Ahome Municipalities),[4] according to the 2010 census.
Ejido Las Vacas (formerly named Juan José Ríos), was founded on 21 September 1938 by presidential decision, by the then President Lázaro Cárdenas del Río.[5] It had an area of 16,420 ha and 179 inhabitants; of which 64 were ejidatarios.
Between the years of 1946 and 1951 several peasants from Los Mochis, 18 de Marzo and San Miguel Zapotitlán towns, Ahome Municipality; and La Louisiana town, El Fuerte Municipality, requested to the Agricultural Department that they be granted with plots to sow in Ejido Las Vacas. And between the years of 1953 and 1954, Agricultural Department granted all of the 672 people who had requested plots.[6]
Several towns in El Fuerte and Choix Municipalities were affected when Miguel Hidalgo Dam construction started. Its construction was divided in two phases: the first one was in the years of 1952 to 1956, and the second one in the years of 1956 to 1964.[7]
The affected towns by dam construction in El Fuerte Municipality were: El Mahome, San Felipe, Gipago y Peñasco, Rincón de Sinaloita and Los Mezcales. The affected towns in Choix Municipality were: El Pajarito, Baca, Caballihuasa, Toro, Picachos and El Sauz.[6] The towns which were affected, their inhabitants were located in different ejidos, as it was in Ejido Las Vacas and its nearby ejidos.
On 21 February 1955, by presidential decision, it was approved an urban area construction in Ejido Las Vacas, for all the affected people by the dam construction.[8] On 28 February 1955, the 637 peasants who were evacuated from the 11 ejidos, which would be flooded by Fort River when the grout curtain of Miguel Hidalgo dam was closed. Affected people were given a 10 ha plot to sow and another plot for living in Ejido Las Vacas. Also, in Ejido Las Vacas were living the original 64 ejidatarios, they lived in Old Las Vacas, as they named the oldest part of Ejido Las Vacas. However, locating the 1375 ejidatarios with their families, it needed another presidential decision to locate in 500 ha each ejidatario giving them a 1,600 m2 (40 m x 40 m) plot for living,[8] including as well as streets, schools and other public services, becoming an urban area, which one were named Juan José Ríos,[6] and it became in a sindicatura. It was the Mexico's biggest ejido,[9] it had an area of more than 16,400 ha.
Juan José Ríos is named after General Juan José Ríos, Mexican politician and soldier, during the Mexican Revolution. Engineers who planned the urban area construction selected this name. Also this General was the last owner of this land.[8]
On 13 July 1989, the then Governor of Sinaloa Francisco Labastida Ochoa, made public Sinaloa State Congress approved Juan José Ríos as a city.[10]
In Sinaloa,[11] municipalities are divided into smaller entities named sindicaturas (Spanish: sindika'tuɾas), and this one is divided into comisarías (Spanish: komisa'ɾi.as). A sindicatura male leader is named Síndico (Spanish: 'sindiko) or a female leader is named Síndica (Spanish: 'sindika). A comisaría male leader is named Comisario (Spanish: komi'saɾjo) or a female leader is named Comisaria (Spanish: komi'saɾja).
Juan José Ríos sindicatura is located in northwestern Guasave Municipality. The seat of this sindicatura is the homonymous city.
It has an area of 960.24 ha, it is 27.71% of the total area of Guasave Municipality, that is why it is the second largest sindicatura of Guasave Municipality, the biggest one is Central Sindicatura of Guasave city.[12]
Juan José Ríos sindicatura is divided into Bachoco and Ejido Campo 38 comisarías.[12]
Since a long time ago, Juan José Ríos inhabitants have requested many times of the Sinaloa Government, to create Juan José Ríos Municipality.[13] [14] [15]
Juan José Ríos Municipality would be formed of:[16] [17] [18]
Juan José Ríos Municipality seal would be the homonymous city, and it would be organized as:[17]
It located in Northern Sinaloa, in Fort Valley region, 20 km southwards Los Mochis, 43 km northwards Guasave and 208 km northwards Culiacán, which is Sinaloa state capital.
Its coordinate is 25°45'26 latitude north and 108°49'18 longitude west. Its altitude is 12 m above sea level.
Its climate is generally warm and humid. Its average annual temperature is 25.9C. Its minimum annual temperature is 18C and its maximum annual temperature is 33.87C, with May to October the hottest season. The average rain precipitation is 382 millimeters annually, with July to October the rainy season.
It had a population of 27,938 inhabitants (including both parts of the city − Guasave and Ahome municipalities); in which 13,761 were males and 14,177 were females, according to the 2010 census.[1]