Reagan National Airport is reached directly via the Metrorail station adjacent to Terminal B/C. Servicing an estimated 20 million passengers annually, Reagan National is the closest airport to the D.C.
BLUE OR GREY The called Blue or Grey Border Collie is due to the presence of a dilute gene, so the deepness of black color is blended, to bluish, slate or dark grey. As well as it happens with other coat colors, the differences are easily seen on puppies (better than on adults, whose coats gets darker).
It is thought that ALL border collies have the genes for sable and/or tanpoint but their ability to express and produce these colours is not only determined by their presence and combinations but also by those of the Dominant black 'K' genes.