Brett changes one sprinkler wheel line in one field. Dori changes the line in another field.
"Water is key for any farmer," said Dori.
"Growing up on a dairy I had a concept of the work," she said.
She spends five days a week working as a caregiver and cook at her sister's care home. She takes turns with Brett driving school bus. It's all to help the family and to improve the farm. Expenses are high.
"We can't complain," said Dori as she drove the bus to Corvallis Primary School. "Cattle prices are good, grain's high, but fuel and twine are expensive, and fertilizer is out of whack."
Dori and Brett's son Tyler Tintzman is starting a registered Angus cattle herd.
The Montana State University senior credits much of his interest in animals to his mom.
"Anything that needs done," said Tyler, "she's up to do it. Same with my grandma. They're probably the most important parts of this ranch. They're the backbone."
Tyler just started cutting hay a couple years ago," said Dori, "Him and I do most of the hay cutting and raking and baling."
Everybody helps brand if they're around.
Dori and Brett's daughter, Jenna Tintzman Hendrickson, and her husband, Billy, live on the place too. They're starting their own cattle herd. Jenna works as a registered nurse.
"There's a joke," said Jenna, "that a good farmer always has a wife that works in town."
Jenna and Billy are carving out a life on the farm for their baby daughter, Lilly.
"We want her to grow up knowing how to change pipe and buck bales," said Jenna. "Drive a tractor and at the same time have a college degree, and have the best of both worlds."
The days are getting longer.
After branding, Dori gets supper on the table. It's late. Everybody's hungry.
It's coming summer up Willow Creek. Pretty days and lots of stuff to do.