Mert County, Georgia

Mert County, Georgia is a county created in 1776 (according to the police logo) and is located approximately just over 18 miles away from Hershel's Farm and is seen in the episode, 18 Miles Out of The Walking Dead (TV Series).

Pre-Apocalypse
Similar to King County, Georgia, Mert is also located in a rural area of Georgia. Few residential houses can be seen as well as several large farmlands. The county's main center is the Department of Public Works building and lot which oversee's the county's major public works such as construction, emergency crews and response, and public transit.

Vehicles and Equipment
The Department of Public Works seems to have access to the following vehicles and equipment to help the county:
 * Mert County Public School buses
 * Mert County Utility Trucks
 * Mert County Fire Trucks
 * Mert County Police cruisers
 * Mert County Police Motorcycles
 * Mert County Bobcats
 * Mert County Dump Trucks
 * Road signs and construction barriers
 * Cement trailers
 * Fuel Tanker
 * Machinery and construction equipment

Post-Apocalypse
Some time later, it seems that this building and yard were used as a evacuation shelter as the buses provided many refugees with shelter and the police kept the walkers at bay. Using the fences as a barrier helped increase their security and similar to Rick's group, they too burned the corpses of any of the walkers they killed. It is unknown if FEMA assisted refugees in this area however, as no command post or shelters are seen set up and the food looked like it was brought by the refugees, it appears they were on their own.

18 Miles Out
Rick and Shane were driving along the highway to look for an area to release Randall so he would no longer be a threat to the group. Rick stumbles upon the building and yard and decides that this would be an ideal location as well as to look for additional supplies such as fuel and food. Rick and Shane released Randall and were on their way when he mentions that he went to school with Maggie which caused Rick to halt and think twice about leaving Randall. Frustrated, Shane disagrees with Rick and tries to shoot Randall but then the two begin to fight since Shane accuses Rick of not being able to protect the group. The fighting gets intense causing Shane to lash out and throw a pipe wrench towards Rick but instead smashes a window releasing all the walkers from inside the building.

Everyone including Randall is fighting all the walkers by either stabbing them with knives or shooting them with the little weapons they have. Eventually Shane takes cover inside a school bus while Rick and Randall gather together and get the car. Randall drives the getaway car while Rick shoots the walkers to which allows Shane an easier way to get to the car. Once inside, the trio drive away and leave the county to head back to the farm.

Trivia

 * The police are very similar to the King County Sheriff's Department and Linden County Sheriff's Department as they all wear similar uniforms and drive similar squad cars except this county has highway patrol motorcycles
 * A intersection just before Rick makes a turn and enters the lot can be seen; the streets are Pimento Ave and Booker St in Griffin, Spalding, Georgia.
 * During the fight, several Mert County vehicles can be seen bearing the county logo