Video: Cattle let loose on Boulder’s invasive oatgrass

<p>(Wikimedia user&nbsp;<a href="" target="_blank">Sten Porse</a>/Creative Commons by 3.0)&nbsp;</p>
<p>A close view of tall oatgrass, which was introduced to North America from Europe in the early 1800s.</p>

Boulder released a head of cattle Tuesday to eat its way through 72 acres of invasive oatgrass, starting at Shanahan Ridge, reports the Daily Camera. The mini-cattle drive lasted about two hours and went pretty smoothly, according to Open Space and Mountain Parks staff.

The drive included 70 pairs of cows with their calves, though one calf later died of exhaustion in the drive. An OSMP spokesperson expressed regret that the calf was lost, and said the ranchers will be compensated.