Members of the Carbon County Chamber of Commerce are invited to join the Greater Northern Lehigh Chamber of Commerce for an evening of socializing and hors d'oeuvres from 5:30 to 7:30 p.m. Tuesday, Dec. 1 at Blue Mountain Vineyards, New Tripoli with friends and fellow Chamber members.For more information and RSVPs call (610) 841-5804 or email elliep@lehighvalleychamber.org.