The Cascades Mountain Range.
Washington, DC - one. State of Washington - two - Eastern Washington and Western Washington.
I think you mean the western and eastern boundaries. And that would be the Cascades Mountain range.
Sort of, in the sense that the school that used to be called Eastern Washington State College had its name changed to Eastern Washington University.
Not sure about "Sierra" Cascades; not familiar with them. However, the Cascade Mountain Range of Washington State is commonly considered that range that divides western WA from Eastern WA. Running therefore North-South and basically leaving about one third of the state on the west side and two thirds on the East. If you haven't noticed the west is not getting capitalized and the WEST is! We on the East side like to call our side the GREAT STATE OF EASTERN WASHINGTON! Hope this helps. Kevin
Believe it or not it is Alaska. Alaska is the most northern, most eastern, and most western state. Hawaii is the most southern. Alaska divides the eastern and western hemisphere at the International Dateline or End Meridian (180 degrees longitude), making it qualify for east and west. The Prime meridiam (0 degrees longitude) is located in Greenwich England.
Western is Alaska and eastern is Maine
Northwest US. Divides Washington state and Oregon state.
Washington has the nickname "Evergreen State"
Bighorns.
Washington state ... it is in the Eastern half of that state.
The state of Washington is located in the most north western area of the lower 48 states. Washington D.C. is located in the District Of Columbia in the North Eastern part of the lower 48 states.
Eastern