Gaithersburg Maryland 2013 St Patrick's Day Parade: The City of Gaithersburg, in partnership with the Harp and Shamrock Society of Gaithersburg and The Peterson Companies and Washingtonian Center, will host the 13th Annual St. Patrick’s Day Parade from 10 a.m. to noon on Saturday, March 16, 2013 at Washingtonian Center (I-370 and Washingtonian Boulevard). Dozens of units will march in the parade, including Celtic dancers, bagpipe bands, clowns, fire trucks, and more. When the parade is over there will be live entertainment on the Lakefront Plaza until 1 p.m. For more information contact the City of Gaithersburg at 301-258-6350 or email dwinder@gaithersburgmd.gov, or The Harp & Shamrock Society at 240-447-9744, www.hssg.org.