Introducing Sour Diesel, Bloom Farms’ newest single origin 500mg vape cartridge from Mad River, CA. A legendary sativa, Sour D is a pungent and invigorating stress reliever. Mad River’s Sour Diesel Single Origin cartridge is perfect for on-the-go medicating that will keep you energized, pain-free and ready to take on whatever the day throws at you.Mad River is a little pocket located in Northern California where the average temperature is a mild 71 degrees. With a population of 420 — no kidding — and a warm-summer Mediterranean climate, Mad River is known for producing some of Northern California’s best cannabis.