Inconclusive investigation leaves death of 13 cows in Summit County a mystery

Dead cattle on Rail Trail on November 17, 2023. Photo: Andy Houston

All tests conducted to determine the cause of death have yielded inconclusive results

SUMMIT COUNTY, Utah — In a recent development regarding the tragic incident along the Rail Trail last November, where 13 cows were found dead, Bailee Woolstenhulme, the public information officer for the Department of Agriculture and Food, has announced that all tests conducted to determine the cause of death have yielded inconclusive results.

The comprehensive tests included a necropsy, a thorough examination of various tissues and fluids for toxic substances, and environmental analyses. Specifically, the liver, kidney, feed, and ocular fluid were tested for a range of metals and minerals, including cobalt, copper, iron, lead, zinc, and thallium. The standing water and livestock water in the area underwent water analysis, while the rumen contents were tested for cyanide. Additionally, nitrate levels were measured, and an organic chemical screen was conducted on the liver to detect any presence of pesticides, environmental contaminants, drugs, or natural products. The plants in the field were also analyzed to check for toxicity.

Despite these extensive efforts, the exact cause of the deaths remains unknown. Woolstenhulme concludes, “This investigation is over.”