Living in Maryland Frederick Maryland has its perks and surprises. you will find serene setting in the outsides of the main city of Frederick . .many enjoying beautiful views towards the mountains Frederick County is probably the best looking county in Maryland because of its proximity to the Catoctin Mountains. Not a surprise that the Presidential retreat Camp David is located around those mountains. . Frederick is located in Frederick County in the north and western part of the state of Maryland. The city has served as a major crossroads since the civil war and colonial times.