Zimmerman, Minn. The annual Spring Clean-up at Sherburne National Wildlife Refuge will be held Saturday, April 21, from 8 a.m. to noon.

Work groups will be assigned tasks including trail maintenance,
raking, litter pick-up, or special projects.

Pre-registration is requested by calling Nancy Haugen, refuge
public use specialist, at (763) 389-3323, ext. 213. Participants
should dress for the outdoors and bring rakes or pruning shears if
available. Volunteers will meet at the Old School House located on
Sherburne County Road 9, 5.5 miles west of Hwy. 169, or two miles
east of County Road 5.