adams_county,_pennsylvania | has to its southeast | carroll_county,_maryland <tsp> 11th_mississippi_infantry_monument | established | 2000 <tsp> 11th_mississippi_infantry_monument | state | pennsylvania <tsp> 11th_mississippi_infantry_monument | category | contributing_property <tsp> 11th_mississippi_infantry_monument | municipality | gettysburg,_pennsylvania <tsp> 11th_mississippi_infantry_monument | location | adams_county,_pennsylvania <sep> adams county is a county in the commonwealth of pennsylvania as of the 2020 census, the population was 103,852 its county seat is gettysburg the county was created on january 22, 1800, from part of york county, and was named for the second president of the united states, john adams on july 1–3, 1863, a crucial battle of the american civil war was fought near gettysburg; adams county as a result is a center of civil war tourism 
southeast of carroll county. maryland is adams county pennsylvania. this county is the location of the 11th mississippi infantry monument erected in 2000 in gettysburg and which is categorised as a contributing property.adams county pennsylvania was created on january 22, 1800, from part of york county