Members of the Tohono O'odham Nation blocked traffic at the U.S.-Mexico border to protest development near a sacred site.

Americans returning from Mexico were held up for hours during the peaceful protest on Sunday. About 1,000 people were involved, The Arizona Republic reported.

Tribal members oppose a hazardous waste dump near Quitovac in Mexico. They say the Mexican government failed to properly notify the public, and the United States, about the project.

Semarnat, Mexico's environmental protection agency, says the La Choya Hazardous Waste Facility will accept up to 45,000 tons of industrial waste every year.

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Rally stalls Rocky Point travelers (The Arizona Republic 11/27)

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