RCMP near Stony Plain made a routine traffic stop on Highway 16 on Saturday to check a "vehicle equipment violation," and ended up with 17 kilograms of cocaine.
Staff Sgt. Brent Meyer said the officer who stopped the vehicle found "indications" that the man driving might have been transporting drugs.
A drug-sniffing police dog named Henri soon found the cocaine, which police say has an estimated street value of $1.7 million.
"It's definitely a significant seizure," Meyer said.
A 66-year-old man from Surrey, B.C., has been charged with one count of possession for the purpose of trafficking.