Gaoqiao, Kai County

Gaoqiao () is a town located in a valley in Kai County, in the northeast of Chongqing municipality in Southwest China. Central Chongqing lies to the southwest.
On 23 December 2003 at 21:15, a gas well burst and released highly toxic hydrogen sulfide. According to "China Daily", 233 people died and at least 9,000 were injured.
The well was called “” and belonged to PetroChina's Southwest Oil and Gas Field Branch (). It was located in the Chuandongbei gas field () in Gaoqiao's Xiaoyang village ().
In 2007, Chevron Corporation and China National Petroleum Corporation signed a contract to share production in Chuandongbei, with Chevron getting 49 percent of the venture, operating the project and supplying the technology.