MultimediaSlideshows Photos: Dia 2014 By webmaster - April 23, 2014 FacebookTwitter North Richland Hills senior Hayley Herring struggles to keep her footing during the tug-of-war competition during Dia Del Oso on Thursday, April 10, 2014. Travis Taylor | Lariat Photo Editor North Richland Hills senior Hayley Herring struggles to keep her footing during the tug-of-war competition during Dia Del Oso on Thursday, April 10, 2014. Travis Taylor | Lariat Photo Editor