Plumas Bancorp announced the recent retirement of two board directors, Alvin G. Blickenstaff and Arthur C. Grohs, after 28 years of service. Their retirement is required by the age-based retirement policy in the company’s Corporate Governance Guidelines and was effective December 31, 2016. Both Blickenstaff and Grohs were on the Board of Directors for Susanville-based Sierra Security Bank. They joined the Plumas Bank Board in 1988 when Sierra Security Bank merged with Plumas Bank.