
Accounting Contact Information
Mary Bylsma
Director of Accounting, Grants & Compliance
(209) 575-6534
bylsmam@yosemite.edu
Vicki Fontana
Senior Accountant
(209) 575-6532
fontanav@yosemite.edu
Rosanne Costa
Accountant/Budget Analyst
(209) 575-6932
costar@yosemite.edu
Aaron Colby
Accounting Analyst
(209) 575-6868
colbya@yosemite.edu
Mayra Magallenes-Reyes
Accounting Technician
(209)575-6517
magallanesm@yosemite.edu
Fax: (209) 575-6317
Accounting
Yosemite Community College District
P.O. Box 4065
Modesto, CA 95352