A Houston County township has stopped further development of a frac sand mine operation by declaring a one-year moratorium. The Tri-County Record reports the Yucatan Township Board voted 2-to-1 in favor of the moratorium. That action stops the development of a frac sand mine along Highway 16. The board also decided to form a study group of township residents to create a comprehensive land use plan and research sand mining issues. The board cited environmental issues as a big reason for calling for more study..