You are here. Cross U.S. Borders. Almost a million times each day, U.S. Customs and Border Patrol (CBP) officers welcome international travelers into the U.S. In screening both foreign visitors and returning U.S. citizens, CBP uses a variety of techniques to assure that global tourism remains safe and strong.
Birches are enchanting trees that embody beauty and grace. While most types of Birch trees grow to roughly 40 feet, some, such as the Paper and Yellow Birch can soar to 80 feet tall.irches are enchanting trees that embody beauty and grace. While most types of Birch trees grow to roughly 40 feet, some, such as the Paper and Yellow Birch can soar to 80 feet tall.
PAPER BIRCH. Paper birch grows in varieties of biomes such as the tundra, coniferous and deciduous forest. It is also known as white birch. They have very thin barks and horizontal layers separate into sheets like paper with the color white to reddish brown.These trees may come into pairs or clusters.APER BIRCH. Paper birch grows in varieties of biomes such as the tundra, coniferous and deciduous forest. It is also known as white birch. They have very thin barks and horizontal layers separate into sheets like paper with the color white to reddish brown.