Roman Catholic Diocese of Calahorra y La Calzada-Logroño

The Cathedral of Santa María (Spanish: Catedral de Santa María) is a cathedral located in Calahorra (in La Rioja, Spain). It is one of the cathedrals belonging to the Roman Catholic Diocese of Calahorra y La Calzada-Logroño. The building was given a heritage listing in 1931, and is currently protected as a Bien de Interés Cultural.

Azagra is a town and municipality located in the province and autonomous community of Navarre, northern Spain.

Aldeanueva de Ebro is a town in La Rioja, in the Alfaro Comarca, located 10 kilometers from Calahorra and 59 from Logroño, in Spain. It has 2,774 inhabitants and is 39 km² in area. Its origin dates from the 11th century, when it was founded by shepherds from Tierra de Cameros and Calahorra after its reconquest by García Sánchez III of Navarre in 1045. It was part of the town of Calahorra until it became independent in 1664, under the reign of Philip IV by means of a considerable sum of money lent by the friars of Fitero, whose monastery maintained bonds. After many lawsuits, what was from then called Arnedo de Ebro passed into the hands of Manuel Íñiguez de Arnedo.

Autol is a village in the province and autonomous community of La Rioja, Spain. River Cidacos flows by the town. There are original rock formations close to Autol. The municipality covers an area of 85.28 square kilometres (32.93 sq mi) and as of 2011 had a population of 4458 people.

Rincón de Soto is a village in the province and autonomous community of La Rioja, Spain. The municipality covers an area of 19.86 square kilometres (7.67 sq mi) and as of 2011 had a population of 3819 people.

The Monte Alto photovoltaic power plant in Spain has a generating capacity of 9.55 megawatts peak (MWp) and will generate 14 million kilowatt-hours of electricity per annum. It cost 65 million euros [US$87 million].The installation covers an area of 51 hectares on agricultural land near the locality of Milagro (Navarre) and contains 889 solar structures, of which 864 are equipped with automated solar tracking. The rest are fixed structures adapted to the relief of the terrain.In five years Acciona Energy has developed seven "solar gardens" in Navarre with a total capacity of 20 MWp, and another two are under construction in Castilla-La Mancha. Overall, the company's installed capacity is 23 megawatts (MW), through the approximately 3,000 automated solar monitoring structures, and represents a total investment of 177 million euros [US$236 million] shared among more than 2,000 owners. The yield from these investments is somewhere between 8 and 10% and the payback of the investment is estimated at around 10 years.

Milagro is a town and municipality located in the province and autonomous community of Navarre, northern Spain.

Alfaro is a town and municipality in La Rioja, northern Spain. Its population in January 2009 was 9,883 inhabitants, and its area is 194.23 km². It is known for the annual return and nesting of the 'Storks of Alfaro.'During ancient Roman times, Alfaro was a municipium known as Graccuris; named after Tiberius Sempronius Gracchus.

Corella is a town and municipality located in the province and autonomous community of Navarre, northern Spain. It is located 91.5 km from Pamplona, and is on the River Alhama, a tributary of the Ebro River. The population in 2022 was 8,336 inhabitants. Corella is the second most populated municipality in the Ribera of Navarre, southern part of Navarre. Corella is well known for its wine. Corella was the birthplace of composer Blas de Laserna.

The Alhama is a tributary of the Ebro. Its source is Suellacabras, in Soria, and it flows for 78 kilometres (48 mi) until its reaches the Ebro at Alfaro (La Rioja).

Cintruénigo is a Spanish town and municipality located in the province and autonomous community of Navarre, northern Spain. Situated in the Merindad de Tudela in the Ribera de Navarra, in the comarca of Tudela in the lower reaches of the Alhama river and 92 km from the capital of the autonomous community, Pamplona. Its population in 2020 was of 8026 according to the Instituto Nacional de Estadistica.