There is no entrance fee at Sherburne National Wildlife Refuge. However, there are a series of passes available at the Refuge Headquarters covering the entrance and standard amenity fees charged for using other federal recreational lands. These include Senior, Access, and Every Kid in a Park Passes. You can find out more at www.recreation.gov and www.everykidinapark.gov.
Passes are available at Refuge Headquarters Monday-Friday, 8am-4pm ONLY. They are NOT available on weekends or Federal holidays.