allaboardharvest.com

https://allaboardharvest.com/2020/08/03/janel-the-golden-triangle/#:~:text=Wheat%20is%20Montana%E2%80%99s%20leading%20cash%20crop%20and%20is,canola%2C%20flax%2C%20lentils%2C%20chickpeas%2C%20mustard%20and%20many%20more.

Wikipedia: Golden Triangle (Montana)