sentences:  The capital city of the canton is San Pedro.The elongated canton reaches from the suburbs of the national capital of San José eastward to the province of Cartago, and neighbors the cantons of Curridabat, San José, Cartago, and Goicoechea.The Río Torres delineate a portion of the northern boundary, while the Río Ocloro and Quebrada Poró mark the southern boundary.