In a statement, Lowell said the marijuana was packaged in a total of 260 vacuum-sealed plastic bags that were spread across 10 suitcases and duffle bags.
Authorities took the child into protective custody after the child reportedly provided a urine sample which tested positive for THC, the active ingredient in marijuana.
A search of Smith's residence allegedly turned up numerous marijuana and methamphetamine pipes, methamphetamine residue inside a jeweler's baggie, THC gummies and unidentified white pills.
The case started in December when his name surfaced during the investigation of a Casper resident, Neil Arcuri, who had a marijuana growing operation in Paradise Valley.
Luke Jackson Tilghman was indicted by a federal grand jury on one count of possession with intent to distribute 100 or more plants in January, and he pleaded not guilty on May 6.