https://masoncityia.com/band-festival/nibf-sponsorship-info/
NIBF Sponsorship Info - Greater Mason City Chamber of Commerce
Feb 2, 2024 - Thanks to the generosity of local businesses and their sponsorships, the NIBF remains a free event for all North Iowa neighbors to enjoy.
greater mason citynibfinfo
https://masoncityia.com/band-festival/nibf-history/
NIBF History - Greater Mason City Chamber of Commerce
history greater masonnibfcity