Riobamba years later away from its original location (near a village named Cajabamba on the plains of San Antonio de Aguíscate). The city still retains much architecture from the Spanish period. In the Ecuadorian War of Independence Riobamba first declared independence on November 11, 1820 but was soon retaken. The city finally became part of an independent Gran Colombia in 1822, and then a separate Republic of Ecuador in 1830. On 20 November 2002, 7 people were killed and hundreds wounded when an explosion in the munitions depot at the Galapagos Brigade arsenal in Riobamba set off a series of blasts.
USS Simon Bolivar (SSBN-641) by her two crews continued until 7 February 1971, when she returned to Newport News for overhaul and conversion of her ballistic missile system to support Poseidon missiles. "Simon Bolivar" departed Newport News on 12 May 1972 for post-overhaul shakedown operations and refresher training for her two crews, which lasted until 16 September 1972. By the end of 1972, she had resumed deterrent patrols while operating from the SSBN refit site in Rota, Spain serviced by submarine tender as part of Submarine Squadron 16. During the summer of 1974, "Simon Bolivar" completed what was to be her final refit at