A plan to get public input on regulations guiding development along the Chelatchie Prairie Railroad drew sharp criticism in Tuesday’s Clark County Council meeting from a local environmental group. The group, Friends of Clark County, which has been involved in past litigation against the county, complained that it has been excluded from the process and called the plan one-sided. “We would appreciate assurances that the public’s participation will be fairly weighted and there isn’t a predetermined outcome with this process,” said Sue Marshall, the board president of conservation group Friends of Clark County. Since last year, the county has been in the process of implementing a change to the state’s land-use law that will allow freight-oriented companies to set up shop along the railroad.