Question: What city is located 20 km south of Marano sul Panaro and on the south side of the Po Valley?

Context articles: Marano sul Panaro
Savignano sul Panaro
Modena
Valle Po
New England National Park
Ennore creek
Shinkolobwe
Rocca Estense, San Felice sul Panaro
San Cesario sul Panaro
San Felice sul Panaro

Marano sul Panaro is a "comune" (municipality) in the Province of Modena in the Italian region Emilia-Romagna, located about 30 km west of Bologna and about 20 km south of Modena.
Savignano sul Panaro is a "comune" (municipality) in the Province of Modena in the Italian region Emilia-Romagna, located about 25 km west of Bologna and about 20 km southeast of Modena.
Modena (] ; Etruscan: "Mutna"; ; Modenese: "Mòdna") is a city and "comune" (municipality) on the south side of the Po Valley, in the Province of Modena in the Emilia-Romagna region of northern Italy.
The Valle Po (Po valley) is a valley of the Cottian Alps in the province of Cuneo, Piedmont, northern Italy.
 It gives rise to the longest river in Italy, the Po, before it enters the Pianura Padana (or Plain of the Po).
 It has a length of some 32 km, from Saluzzo to Crissolo, and is home to the Monviso mountain.
 It is bounded by the Val Pellice, Valle Varaita and the Valle del Guil.
 The head of the valley is located at the Traversette pass ("Colle delle Traversette") (2950 m above sea level).
 The valley descends through the King's plain ("Pian del Re") (2020 m), where the Po river has its source.
The New England National Park is a protected national park located on the Northern Tablelands in the New England region of New South Wales, Australia.
 The 67303 ha park was created in May 1935 and is situated approximately 560 km north of Sydney, and 10 km south of Waterfall Way, just 85 km east of Armidale and 65 km west of Coffs Harbour.
 The closest village to New England National Park is Ebor, located 20 km away.
Ennore creek is a backwater located in Ennore, Chennai along the Coromandel Coast of the Bay of Bengal.
 It is located in the zone comprising lagoons with salt marshes and backwaters, submerged under water during high tide and forming an arm of the sea with the opening to the Bay of Bengal at the creek.
 The zone is spread over an area of 4 km, and the creek covers an area of 2.25 km.
 It is located 20 km north of the city centre and 2.6 km south of the Ennore Port, and the creek area stretches 3 km into the sea and 5 km along the coast.
 The creek is nearly 400 m wide, elongated in northeast-southwest direction and merging with the backwater bodies.
 Once a flourishing mangrove swamp, the creek has been degraded to patches in the fringes mainly due to human activities in the region.
 The depth of the creek varies from 1 to 2 m and is shallow near the mouth.
 The north–south trending channels of the creek connect it with the Pulicat Lake to the north and to the distributaries of the Kosasthalaiyar River in the south.
 The northwestern part of the creek merges with the tidal flats.
 The soil in the region is of loamy and alluvial types.
 Most of the area consists of tracts of alluvial soil and the eastern region comprises beach dunes, tidal flats and creek.
 The creek is oriented from west to east and opens into the Bay of Bengal to the east at Ennore.
 The creek acts as an outlet for the excess water from the Poondi Reservoir.
 The creek separates the town of Ennore from the Ennore Port located in the north and the Kattupalli Shipyard located further north.
 The North Chennai Thermal Power Station is located at the north of the creek and the Ennore Thermal Power Station is located to the south.
 The creek is part of the Pulicat water system, including the Pulicat lagoon and the Buckingham Canal.
 As per the 1991 Coastal Regulation Zone notification, the entire Pulicat water system is designated CRZ I.
 The creek is experiencing siltation due to emergence of the Ennore Port.
Shinkolobwe, or Kasolo, or Chinkolobew, or Shainkolobwe, is a radium and uranium mine in the Katanga province of the Democratic Republic of the Congo (DRC), located 20 km west of Likasi, 20 km south of Kambove, and about 145 km northwest of Lubumbashi.
The Rocca Estense is a castle in San Felice sul Panaro, a "comune" (municipality) in the Province of Modena in the Italian region Emilia-Romagna.
 It is located about 40 km northwest of Bologna and about 25 km northeast of Modena.
San Cesario sul Panaro is a "comune" (municipality) in the Province of Modena in the Italian region Emilia-Romagna, located about 25 km northwest of Bologna and about 12 km southeast of Modena.
 Sports car manufacturer Pagani is located here.
San Felice sul Panaro is a "comune" (municipality) in the Province of Modena in the Italian region Emilia-Romagna, located about 40 km northwest of Bologna and about 25 km northeast of Modena.