It took over a year of undercover work from deputies in two rural Texas counties, but their work has paid off in massive dividends.

According to Star Telegram, “Operation Ice Storm” netted 23 arrests last week after deputies from Hamilton and Coryell counties uncovered a heroin and meth ring that ran from Fort Worth to Austin, according to a Hamilton County news release.

The Aryan Brotherhood of Texas was well represented as deputies confirmed several of the 20 arrested for felony delivery of meth or heroin were members. Most of those facing the felony charges were carrying more than 4 grams but less than 200 grams of either meth or heroin. This could carry a penalty of up to 99 years in prison if convicted.

“These things fan from Fort Worth to Austin to Waco to the Belton-Killeen-Temple area,” Hamilton County Sheriff Justin Caraway told KWTX, adding that he expects 20 to 30 more arrests in connection with the operation.