Gary Monk is keeping a close eye on a U.S. Forest Service study of the road system on the Chattahoochee National Forest.“We use a lot of the roads and we use them a lot,” said Monk, past president of the Georgia Appalachian Trail Club.“If some of the main ones were to be closed, it would really, really hamper our activities of trail maintenance.”Judy Toppins, spokeswoman for Chattahoochee-Oconee National Forests, said the government is not set on closing roads.“This is just a study,” she said. “We are gathering information that could be used to make future decisions down the road, but then there would be another public comment period that would be associated with any changes that are made.”For now, the Forest Service is seeking public input through Friday on which national forest roads are important to visitors and why.“The Forest Service is committed to balancing the needs for public access to the Chattahoochee National Forest with our responsibility to sustain a productive, diverse and healthy national forest,” said Forest Supervisor George Bain.“As part of this commitment, we must address crucial concerns about the future sustainability of the national forest road system.”The three ranger districts that make up the forest are set to complete transportation studies this year. A study on the Oconee Ranger District, based in Eatonton, was completed last year.A press release issued in March noted that the roads effort is part of a nationwide initiative, with all national forests completing studies by 2015.The studies aim to identify roads “needed for safe and efficient travel and for the protection, management and use of national forests,” the release states.