Deputies stopped the driver for speeding last week on U.S. Highway 93. The driver, identified in court documents as Francisco Joel Garcia Farias, said he was transporting merchandise for events. After a police dog alerted to the vehicle, deputies searched 13 storage bins and found 677 pounds of methamphetamine and 30 pounds of fentanyl, the documents say.

Authorities put the drugs’ estimated street value at about $2 million. The seizure is among Nevada’s largest, according to authorities cited in the case.

Court documents say Garcia Farias told investigators he had driven from Washington state to Las Vegas and was heading north toward Idaho when he was stopped. Investigators have not publicly confirmed where the drugs came from, who was meant to receive them or whether Las Vegas was part of the suspected trafficking operation.

Retired Henderson police officer David Kohlmeier, who was not involved in the investigation, said traffickers may use less-traveled roads instead of major interstates. He said officers in his experience paid attention to vehicles with out-of-state plates, including those from California and Washington.

Garcia Farias is expected to appear in federal court on Oct. 28. The publicly available information does not establish the outcome of the case or whether he has been convicted. Federal drug-trafficking penalties vary according to the charges and circumstances.

Fentanyl is a potent synthetic opioid, and naloxone, sold under the brand name Narcan, can reverse an opioid overdose. People seeking substance-use treatment referrals can call the confidential national helpline at 1-800-662-4357.