After our thread about Gwinnett parks, it made me think there probably plenty of other cities and counties that have invalid ordinances. I'll start with what I have found: City of Roswell: Section 14.2.4 Activities Prohibited in Parks and Public Places. The following activities are prohibited in all City of Roswell public parks including the Roswell Trail System: (a) Alcoholic beverages. It shall be unlawful for any person to possess and/or consume any alcoholic beverage, or be under the influence of alcoholic, malt and/or vinous beverage, within any public park and/or within any building under the supervision of the Roswell Recreation and Parks Department unless such usage is expressly permitted by signage or published rules of the particular park or recreation building. (b) Firearms. It shall be unlawful for any person to possess any firearm, air gun or any explosive substance in any of the city parks, unless written permission for such has been authorized by the director of the Roswell Recreation and Parks Department. Section 14.2.6 Violation, Penalty. Any person violating any provision of this section and/or concealing a violation of, or harboring, assisting or protecting a person charged with or convicted of a violation of this section shall be punished by a fine not to exceed two hundred and fifty dollars ($250.00), by sentence of imprisonment not exceeding ninety (90) days, and to community service for a period not exceeding ninety (90) days, either or both of such fines and imprisonment, or work on the streets, parks or public works, in the discretion of the municipal court judge. Here's a list compiled by Malum Prohibitum: List now located on the Places Not Off-limits page in its own section. Unknown Alpharetta - Rules are not part of code as amended, but they are posted on signs and available from city, there are penalties for violating these unknown rules Bibb County Lake Tobesofkee Recreation Area - 1974 code is incorporated into the code as the rules that are enforceable - but you gotta ask for them Clayton County - Sec. 66-20. Firearms. It shall be unlawful for any person to possess, carry or use any firearm in a park unless otherwise specifically authorized by state law. (emphasis added). I would like to put this in the OK category, but I am not sure that what the commission meant by "authorized by state law" was a firearms license.