The Purest

Diatomaceous Earth for Everything

The finest diatomaceous earth for farms, ranches, homes, and gardens, harvested in the USA.

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HARVESTED IN OREGON FROM FRESHWATER SOURCES

Pure Mountain works where you need it most, delivering reliable performance and exceptional results in every situation you face.

Horses grazing on our family farm, with fields, a barn, and hills beyond.
  • Farms and Ranches

    Trusted by agricultural operations and farming enterprises across the country, from small family farms to large-scale operations.

  • Homes and Offices

    Whether you're tidying up your home or deep cleaning specific areas, there are numerous ways to maintain a fresh, healthy environment.

  • In The Garden

    Grow stronger, healthier plants with our pure diatomaceous earth, which supports healthy roots and promotes vibrant growth.

OUR PREMIUM PURE MOUNTAIN DIATOMACEOUS EARTH Products

Every single product undergoes rigorous testing and inspection to ensure it meets our uncompromising standards for quality and excellence. We are deeply committed to delivering only the finest items to our valued customers.

  • FOR ORGANIC USE
    Diatomaceous earth being sprinkled from a glass jar onto garden plants.

    Diatomaceous Earth for Everything

    Freshwater diatomaceous earth from our family’s mine near Westfall, Oregon. Harvested, processed and packaged by our crew for your home, garden, farm and ranch.

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  • A weathered wooden barn with a metal roof and snow on the ground.

    Pure Barn

    From our family’s Oregon mine to your barn. Pure Barn is a lightweight, absorbent diatomaceous earth for managing moisture in stalls, pens and bedding.

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  • A child picking ripe fruit from a tree in the sunshine.

    Pure Bloc

    A bright white, water-applied mineral film designed to help protect sun-exposed crops from intense sunlight and heat when used as directed.

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  • Pure Coop

    From drier bedding to dust-bath time, Pure Coop is our family’s freshwater diatomaceous earth for everyday poultry care, mined and processed in Oregon.

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  • Forklift and stacked product pallets inside Pure Mountain’s warehouse.

    Pure Dry

    From kitchen spills to oil drips in the driveway, Pure Dry is a lightweight mineral absorbent for everyday cleanup at home, in the shop and around the farm. Made from our family’s freshwater diatomaceous earth.

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  • Pure Feed

    Freshwater diatomaceous earth from our family’s Oregon mine for feed and grain. Pure Feed helps manage moisture and reduce clumping—and it’s a product we use with our own animals.

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  • Pure Guard

    Protect the grain you work hard to grow and store. Pure Guard is an EPA-registered diatomaceous earth insecticide for granaries, grain bins and commercial agricultural grain storage.

    EPA Registration Number: 69261-3

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  • FOR ORGANIC USE
    Our granddaughter reaching for a sunflower in the family garden.

    Pure DE

    From our family’s Oregon mine, Pure DE is a ready-to-use diatomaceous earth insecticide dust for labeled pests in and around homes, shops, farm buildings and their immediate surroundings.

    EPA Registration Number: 69261-4

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  • Pure Mountain Special Reserve 12 oz pouch of premium diatomaceous earth.

    Special Reserve

    Special Reserve is our premium, extra-fine diatomaceous earth with a soft, silky texture. Sourced from our family’s freshwater Oregon deposit and packed in convenient resealable pouches, it brings a finer feel to the Pure Mountain lineup. Choose a 12 oz or 24 oz pouch.

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