It is unclear who put up the banners, festooned to bridges and overpasses. They appeared at a time when U.S. authorities are ramping up pressure on Mexico to take action ... by El Chapo's old ...

Instead, halfway up the Nose route, the rock climbers stopped to unfurl a 25-foot-by-15-foot banner reading “Stop ... explained to SFGATE why the group chose El Capitan. “ ...

The machine-printed banners were purportedly signed by a faction of the Sinaloa cartel led by the sons of jailed Mexican drug lord Joaquin "El Chapo" Guzman. The sons are known as "Los Chapitos ...

It is unclear who put up the banners, festooned to bridges and overpasses. They appeared at a time when U.S. authorities are ramping up pressure on Mexico to take action ... by El Chapo's old ...