ALBANY, Ga. — Four additional area members of a meth-distribution ring based in Colquitt County were sentenced on Tuesday to serve federal prison terms ranging from 90 to 180 months.

Federal authorities say that altogether the group of 30 men and women distributed more than 20 kilograms — about 44 pounds — of methamphetamine between May and November 2016. With Tuesday’s court activity, 25 of the 30 people have been sentenced.

This week, U.S. District Court Judge Leslie J. Abrams sentenced Michael Stamper, 35, of Moultrie to serve 15 years.

Stamper pleaded guilty on April 25 to possession with intent to distribute methamphetamine.

Also sentenced by Abrams on Tuesday were:

• Brenda Trimble, 32, Moultrie, sentenced to 11 years after pleading guilty on Feb. 14 to a charge of distribution of methamphetamine.

• Christin Johnson, 33, Coolidge, who pleaded guilty on April 25 to conspiracy to possess with intent to distribute methamphetamine and received a sentence of seven and a half years.

• Will Barron, 30, Monticello, Fla., who received an eight-year sentence on a plea of conspiracy to possess with intent to distribute controlled substances.

In addition to the prison term, Trimble was ordered to serve four years on supervised release, while the other three were sentenced to five years in that program.

Police said the ring’s tentacles reached as far as the Atlanta area, from where the drugs were being obtained, and distributed in a large area around Moultrie that reached into Florida.

Stamper and Trimble, along with ringleader Borris Fuller, were among those charged after an initial round of arrests and indictments of 22 people, all of whom were initially charged with conspiracy with intent to distribute methamphetamine.

They were all part of a 27-count federal indictment handed down on April 17, 2017, and 16 of those original targets were arrested on April 25 and taken into federal custody.

Following that initial action, more indictments and arrests followed.

The initial investigation was started by drug agents with the Colquitt County Sheriff’s Office and lasted for more than a year. It eventually included the U.S. Drug Enforcement Administration, Georgia Bureau of Investigation, officers with the state Department of Corrections and Department of Community Supervision, Mid-South Narcotics Task Force, and Florida Bureau of Investigation.

Other than the sheriff’s office, other agencies that played a role were Moultrie Police Department and sheriff’s offices from Berrien, Cook, Crisp, Grady, Henry and Tift counties in Georgia, and from Leon and Volusia counties in Florida.

Fuller, 41, received the most prison time when he was sentenced in October to 30 years in prison and 10 years’ supervised release.

There is no parole in the federal system, and inmates spend nearly the entirety of the prison time imposed behind bars.