Most of the time, rock- hounds have to hit up gravel pits, freshly plowed fields or pebble-strewn beaches to find prime examples of the state gemstone, the Lake Superior agate. This weekend, all they have to do is head to downtown Moose Lake.

As part of the annual Moose Lake Agate Days, dump trucks will again travel down two blocks of Elm Avenue depositing all kinds of rocks and gravel, plus 400 pounds of agates, $400 in quarters and $100 in 50-cent pieces for the Clark-Olsen Agate Stampede at 3 p.m. Saturday. It’s easy to identify experienced stampeders as they often bring buckets of water or...