Siderius Family Farm, LLC

Large round alfalfa bales, cultivated in the the Flathead Valley. 

OUr family

The Siderius Family Farm, LLC is a multi-generational farm and has always raised various crops, from winter wheat, barley, sunflowers, alfalfa, lentils, to canola.  We look forward to each year’s planting of crops and the whole family works extremely hard at harvest.



OUr mission

At Siderius Family Farm, LLC, our mission is to provide our customers with the highest quality grass fed, grain finished, Montana Angus beef, while building a relationship between the customer and the small family farmer that produces their beef.

Our business philosophy

We at Siderius Family Farm, LLC, believe in the age-old traditional relationships between producers and consumers. We choose to still live in the time where a person can shake hands with the farmer, rancher or craftsman who created the purchased products. The consumer judges the quality and value by seeing for themselves the quality, and the dedication of the producer. Deals are made face to face with a handshake and oath to deliver. The values of pride, honor, and commitment are as valuable as the product and the money exchanged.

our journey

We raise red and black angus cattle.  Back in the 60’s, 70’s and 80’s, Marks father Tom Siderius -3rd generation, raised 1000’s of hogs and cattle.  

When Mark left for college in the early 90’s, Tom got out of the hog business.  When Heather and Mark were married in 2000, Heather started direct marketing 1/4 and 1/2’s of the beef to customers.  

We have always relied on word of mouth to promote our sales, which has help us grow over the last 24 years.  We’ve learned that customers love to know where their food is grown and how it raised.  We are very transparent, that every animal is born and raised on our farm.

Together we spend each day both continuing and preserving our family legacy. 

contact the farm

Thank you for choosing Siderius Family Farms, LLC