Douglas County sheriff's deputies found 230 pounds of marijuana in the cab of a semitrailer truck during a Friday traffic stop.
The Sheriff's Office estimated the street value of the marijuana at more than $1 million.
A deputy pulled over Pick Ing, 52, and his passenger Narath Khath, 41, on Interstate 80 near L Street about 11:30 a.m.
Ing indicated they were heading to Minnesota with a load of ATV accessories, the Sheriff's Office said.
The deputy noticed a strong odor of marijuana coming from inside the semitrailer.
With the help of a K9 unit, the deputy searched the truck cab and found the marijuana.
Ing and Khath were arrested on suspicion of possession of a controlled substance with the intent to deliver and no tax stamp.