National borders of WHAT country.
Canada has only two land borders with the US. One with the contiguous states and the other with Alaska. These are therefore the two shortest and longest borders.
Canada and the U.S
New South Wales has the longest
California
California
Lake Superior borders the Pukaskwa National Park of Canada.
Yellowstone National Park borders Wyoming, Idaho, and Montana.
The state on the west coast of the United States with the longest coastline is California. California borders on the Pacific Ocean.
No state has both. Alaska has the longest State Border with Canada. Florida has the longest Atlantic shoreline.
Vienna, the capital of Austria, is located at the eastern border of the country, close to Slovakia and Hungary.
National H'ways stay within the borders of their countries. International H'ways cross borders into and through other countries.
India shares its borders with Pakistan, China, Nepal, Bhutan, Burma and Bangladesh. Of these land borders, India shares its longest one with Bangladesh. The border between Bangladesh and India stretches 4,096 km (2,545 mi) and is the fifth longest land border in the world.