To make Zimmerman Trail safe for the public to travel, rock remediation was deemed necessary.
Terracon, a group based out of Colorado, was charged with the task of getting rid of the loose rocks.
After two blasts, the original goal, getting rid of a rock dubbed Monkey's Face because of it's monkey like features, never occurred. However, they did manage to get rid of another large rock dubbed again with animal name: Shark's Tooth.
City of Billings Engineer Debi Mehling says Zimmerman Trail will open on schedule, even though rock remediation is a bit behind schedule.
If you want to view the rocks, Terracon and the City of Billings says stay far away from the Trail and use binoculars.