Sauk Valley Angus in Illinois: History, What It Raises, How It Makes Money and How to Contact It
Profile updated November 2026
Sauk Valley Angus near Rock Falls, Illinois, is a family Angus seedstock and row-crop operation that the Beef Improvement Federation named its 2006 Seedstock Producer of the Year. The Sandrock and King families sell bulls at an annual production sale held on the fourth Saturday of March, a tradition since 1997. It is a clear example of a cattle program built on records, genetics and long customer relationships.
| Location | Rock Falls, Whiteside County, Illinois |
|---|---|
| Founded | Angus cattle since the 1940s; seven generations at the site (Stockman, BIF) |
| Sectors | Angus seedstock; embryo transfer; row crops |
| Scale | BIF 2006: 480 registered Angus and over 10,000 acres of row crops; the Stockman 2020: 9,000 acres |
| Why it is notable | 2006 BIF Seedstock Producer of the Year; first Illinois purebred firm so honored |
| Ownership | Sandrock and King families |
| Official website | Sauk Valley Angus website |
History of Sauk Valley Angus
BIF reported in 2006 that the operation had been at its current site for seven generations and that all income came from Angus seedstock and cash crops. It was the first purebred firm from Illinois to win the BIF Seedstock Producer of the Year award. Gary and Kathy Sandrock owned it then, and Jay King, Ben Sandrock and Matt Sandrock managed it.
The Stockman described Ben Sandrock running the farm with his brother Matt, their father Gary and grandfather Jay, with four generations of Sandrocks and Kings working together. The 2023 catalog marked the 40th Angus sale at the farm.
What Sauk Valley Angus Grows and Raises
The program focuses on balanced, functional cattle. BIF said cows were synchronized and artificially inseminated to calve within a 45-day window in January and February, and an embryo program propagates elite cow families. Performance data, EPDs and ultrasound scans guide selection and culling. These figures date from 2006 and herd numbers differ in later sources, so confirm current numbers with the farm.
The 2023 sale catalog shows bulls with calving-ease and heifer-bull flags, developed on a high-roughage, silage-based ration. The farm sells bulls and females at an annual sale at the farm, offers a guarantee and delivery, and keeps a one-third semen interest in each bull. BIF also described a Herd Builders Program for new producers and a youth incentive for 4-H and FFA members.
How Sauk Valley Angus Makes Money
Bull and female sales
Annual sales of Angus bulls and females are the core income. The catalog says cattle are guaranteed and delivery is free within the continental U.S.
Semen and genetics interests
Retaining a one-third semen interest in each bull sold gives the program a share of its genetics beyond the sale day.
Row crops
BIF said income came from Angus seedstock and cash crops, with irrigated ground a large share. The coverage does not give crop sales figures.
Farm Insight: What Other Operators Can Learn from Sauk Valley Angus
The first lesson is that a seedstock business is a data business. Recording performance, scanning and tracking EPDs let the farm cull confidently and show customers real numbers.
The second is to build programs that bring in new buyers, such as the Herd Builders Program and youth incentive. The third is consistency: a fixed March sale date and a guarantee for every bull let commercial cattlemen plan on it year after year.
A sale that has landed on the fourth Saturday of March since 1997 is the most dependable thing in Whiteside County, including the weather. At farm.FM our farm satire desk tips a hat to bulls developed on silage and raised with a calving-ease flag. We keep the farm humor and ranch humor polite, with farm jokes about forty sales where every bull claims to be the best-looking one.
If the name is new to you, farm.FM is the nation's first satirical farm site, with Tractor Tunes country music for farmers on the side. One of its regular writers keeps a whole archive of stories like that.
How to Contact Sauk Valley Angus
Website: https://saukvalleyangus.com/
The domain saukvalleyangus.com appeared in a 2020 Stockman article about the operation. Sale information and contact details are published there and in the annual sale catalog; confirm before traveling.
Sauk Valley Angus Sources and Agriculture Authority Links
- Sauk Valley Angus - Operation website
- BIF award profile - 2006 Seedstock Producer of the Year
- 2023 sale catalog - Bull and Female Sale catalog
- Beef Improvement Federation - National beef genetics association
- American Angus Association - Breed registry and EPD data
Sauk Valley Angus FAQ
Where is Sauk Valley Angus?
It is near Rock Falls in Whiteside County, Illinois.
What honor has it received?
BIF named it 2006 Seedstock Producer of the Year.
When is the annual sale?
The Stockman says the production sale is held on the fourth Saturday of March.
What else does the farm do?
It also grows row crops, with irrigated ground a major share according to BIF.
Sauk Valley Angus shows how records, repeat sales and family continuity build a seedstock brand. For soils, markets and programs across the state, read our Illinois farms guide and the other profiled operations.