A proposed route for a Southern Arizona pipeline to take natural gas to Mexico is being criticized as damaging to the environment and opening a new route for smugglers and immigrants illegally entering the country.

The planned 60-mile-long pipeline through the Altar Valley would extend from an existing Kinder Morgan Inc. line near Tucson southward to the U.S.-Mexico border near the town of Sasabe.

The Arizona Republic reported that the Pima County Board of Supervisors on Tuesday is scheduled to consider a resolution opposing the pipeline and directing the county manager to demand more than $16 million for various impacts.

Houston-based Kinder Morgan Inc. said it'll pay for required remediation work and more. Spokesman Richard Wheatley said the company hopes to reach an amicable solution with the county.