Photos: United States Postal Service handles holiday mail

Abigail Dollins
Sioux Falls Argus Leader
Plant manager Phil Konkel walks through the Processing and Distribution Center Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Plant manager Phil Konkel walks through the Processing and Distribution Center Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
USPS workers sort through letters handles on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
USPS workers sort through letters handles on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
A machine sorts through letters on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. This machine sorts over 35,000 letters per hour.
A machine sorts through letters on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. This machine sorts over 35,000 letters per hour.
Abigail Dollins / Argus Leader
Packages are moved throughout the Processing and Distribution Center on Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Packages are moved throughout the Processing and Distribution Center on Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
Plant manager Phil Konkel walks through the Processing and Distribution Center Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Plant manager Phil Konkel walks through the Processing and Distribution Center Thursday, Dec. 5, 2019 in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
Packages move on a conveyer belt on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The conveyor belt sorts packages to be distributed to 180 different towns.
Packages move on a conveyer belt on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The conveyor belt sorts packages to be distributed to 180 different towns.
Abigail Dollins / Argus Leader
USPS workers make sure the orientation is correct for each package on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the end of the holiday season.
USPS workers make sure the orientation is correct for each package on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the end of the holiday season.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
A USPS worker handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
A USPS worker handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
Larger packages are sorted on a conveyor belt on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Larger packages are sorted on a conveyor belt on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
The flat sorter separates pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
The flat sorter separates pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Abigail Dollins / Argus Leader
Plant manager Phil Konkel watches as the flat sorter separates pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Plant manager Phil Konkel watches as the flat sorter separates pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Abigail Dollins / Argus Leader
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
The USPS handles parcels during an influx for the holiday season on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls. The postal service will sort through millions of pieces of mail before the holidays end.
Abigail Dollins / Argus Leader
A USPS worker sorts mail by hand on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
A USPS worker sorts mail by hand on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Abigail Dollins / Argus Leader
Plant manager Phil Konkel looks through pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Plant manager Phil Konkel looks through pieces of mail on Thursday, Dec. 5, 2019 at the Processing and Distribution Center in Sioux Falls.
Abigail Dollins / Argus Leader