Pennsylvania borders Maryland to the south.
Pennsylvania and New york borders Lake Ontario to the south.
Maryland is south of Pennsylvania.
New South Wales has the longest
maryland and delaware
North Dakota borders South Dakota. North Carolina borders South Carolina.
Canada borders the north, Mexico borders the south.
Mexico borders the US on the south and Canada on the north.
From east to west, the states that border Lake Erie are New York, Pennsylvania, Ohio, and Michigan. Ohio has the longest border, with only tips of New York, Pennsylvania, and Michigan bordering the lake. Canada's Ontario province borders Lake Erie on to the north.
On the north South Africa borders Botswana, Zimbabwe and Mozambique
Montana borders North and South Dakota,
The states that border Maryland are Delaware, Pennsylvania, and Virginia.