Officials say no arrests have been made in the sophisticated growing operation of 5,000 marijuana plants in a remote area of Bandelier National Monument.

But authorities are looking for at least two suspects. They estimate the plants that were 6 feet (1.8 meters) to 10 feet (3.1 meters) tall had a street value of more than $5 million.

Park superintendent Jason Lott says the pot was discovered during an Aug. 23 helicopter flight surveying a flash flood.

A number of local and federal law enforcement agencies raided the operation on Thursday.