150 years ago, congress commissioned the Northern Pacific Railway company to link the Great Lakes area with the Puget Sound area along ways to the Lewis and Clark path. The railroads system across the country was the main economical enabler of the nation from the gold rush area to the 20th century industrial revolution.
One of the Northen Pacific line called the Lake Washington Belt Line went thru the Easide and the City of Kirkland. In the early 90's the line hosted the locally Spirit of Washington dinner train. Unfortunately, after many sucessful years, the lease was not renewed and the famous train ceased to operate.
Today the the railway going thru Kirkland is known as the Eastside Rail Corridor which runs from Renton to Snohomish. The City of Kirkland purchased the portion of the corridor passing thru its city limit and is transforming the corridor for its residents use (most of the line spurs have been removed).
Take a walk, go for a jog, think about the history and importance of this line in the region. While you're at it, why not finding a cool cache?
To find the final coordinate:
You may park at the orginal cooridinate but also anywhere along the corridor where parking is allowed.
N 47 40 AB
W 122 11 CD
Month the first locomotive pass thru the Stampede Pass tunnel = A
(Year he City of Kirkland purchased the 5.75 mile segment of the Eastside Rail corridor) - (Year the Spirit of Washington started= 1989) + 4 = B
(Number of years of the Spirit of Washigton Dinner Train ) - 10 = C
(Number of Eastside Rail Corridor rail line miles) + (Number of years of the Spirit of Washigton Dinner Train ) = D
Happy geocaching!
You can check your answers for this puzzle on GeoChecker.com.