Question: What passenger trade route is serviced by Edmonds and runs parallel to the Cascade mountain range?

Context paragraphs:
Coast Mountains: The Coast Mountains are a major mountain range in the Pacific Coast Ranges of western North America, extending from southwestern Yukon through the Alaska Panhandle and virtually all of the Coast of British Columbia south to the Fraser River.  The mountain range's name derives from its proximity to the sea coast, and it is often referred to as the Coast Range.  The range includes volcanic and non-volcanic mountains and the extensive ice fields of the Pacific and Boundary Ranges, and the northern end of the volcanic system known as the Cascade Volcanoes.  The Coast Mountains are part of a larger mountain system called the Pacific Coast Ranges or the Pacific Mountain System, which includes the Cascade Range, the Insular Mountains, the Olympic Mountains, the Oregon Coast Range, the California Coast Ranges, the Saint Elias Mountains and the Chugach Mountains.  The Coast Mountains are also part of the American Cordilleraa Spanish term for an extensive chain of mountain rangesthat consists of an almost continuous sequence of mountain ranges that form the western backbone of North America, Central America, South America and Antarctica.

Stuart Range: The Stuart Range is a mountain range in central Washington, United States.  The range lies within the eastern extent of the Cascade Range immediately southwest of Leavenworth and runs east-west.  The western peaks make up a single sharp ridge.  The eastern half of the range splits into two parallel ridges, the northern of which is known as the Enchantment Peaks.  Between these ridges lies the Enchantment Basin, which holds the dozens of tarns known as the Enchantment Lakes.  Collectively, the basin and the encircling eastern peaks of the Stuart Range make up The Enchantments, a well-known backpacking destination.  The south face of the Stuart Range falls off steeply to Ingalls Creek, beyond which rise the roughly parallel Wenatchee Mountains.

Pacific Northwest: The Pacific Northwest (in the United States, commonly abbreviated as PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by the Pacific Ocean to the west and (loosely) by the Cascade Mountain Range on the east.  Though no agreed boundary exists, a common conception includes the U.S. states of Oregon and Washington and the Canadian province of British Columbia.  Broader conceptions reach north into Alaska and Yukon, south into northern California and east to the Continental Divide, thus including Idaho, Western Montana, and western Wyoming.  Idaho, Wyoming, and Montana are more accurately termed the Inland Northwest (INW), as the climate, folia, fauna, and politics are different than in the Pacific Northwest, as well as a different time zone in all but North Idaho.  Narrower conceptions may be limited to the northwestern US or to the coastal areas west of the Cascade and Coast mountains.  The variety of definitions can be attributed to partially overlapping commonalities of the region's history, geography, society, and other factors.

Bundesstraße 8: The Bundesstraße 8 (abbr.  B8) is a German federal highway in southwestern Germany of great historical importance.  It has existed since the 9th century, known then as Via Publica, and until recent times was a key trade route linking the towns of Brussels, Duisburg, Cologne, Frankfurt, Würzburg, Nuremberg, Regensburg and Passau.  Today it has been replaced as a main route by the A3 motorway which runs parallel to it.

Edmonds station (Washington): Edmonds is a passenger train station in Edmonds, Washington, servicing Amtrak's "Empire Builder" and "Cascades" trains, as well as Sound Transit's Commuter Rail North Line.  The station is adjacent to the Edmonds-Kingston Ferry docks.

Arrow Canyon Range: The Arrow Canyon Range is a small, narrow Basin and Range faulted mountain range that runs south to north in Clark County, Nevada, United States.  Its length is approximately 25 miles at a latitude 36˚35' - 36˚47', and its width is roughly 7 miles at a longitude of 114˚54' - 114˚47'.  The base elevation is 3,000 ft, and it rises to 4,953 ft at its peak.  It runs parallel to U.S. Route 93, where the western front is easily viewed along the entire length, only about 3.5 mi distant.

Amtrak Cascades: The Amtrak "Cascades" is a passenger train route in the Pacific Northwest, operated by Amtrak in partnership with the U.S. states of Washington and Oregon and the Canadian province of British Columbia.  It is named after the Cascade mountain range that the route parallels.

Temblor Range: The Temblor Range is a mountain range within the California Coast Ranges, at the southwestern extremity of the San Joaquin Valley in California in the United States.  It runs in a northwest-southeasterly direction along the borders of Kern County and San Luis Obispo County.  The name of the range is from the Spanish word for "earthquake" ("terremoto").  The San Andreas Fault Zone runs parallel to the range at the base of its western slope, on the eastern side of the Carrizo Plain, while the Antelope Plain, location of the enormous Midway Sunset, South Belridge, and Cymric oil fields, lies to the northeast.

Pitchoff Mountain: Pitchoff Mountain is a 3600 ft mountain opposite Cascade Mountain on NY 73 west of Keene Valley in Essex County, New York, in the US.  There are two summits; the higher summit is viewless, but the northern summit, at 3323 ft offers 360 degree views of the nearby Cascade Lakes, the High Peaks of the Adirondacks, and, in clear weather, the Green Mountains of Vermont.  There is a 5.2 mi hiking trail that starts on Route 73 west of the Cascade Lakes, climbs 2.0 mi to the blind summit, then traverses the nearly two-mile summit ridge to the northern summit before descending 1.4 mi to Route 73 east of the Lakes, 2.7 mi east of the starting point.

Wakhan Corridor: The Wakhan Corridor (alternatively Vakhan Corridor, or Wakhan) is the narrow strip of territory in northeastern Afghanistan that extends to China and separates Tajikistan from Pakistan.  The corridor, wedged between the Pamir Mountains to the north and the Karakoram range to the south, is about 350 km long and 13 - wide.  From this high mountain valley the Panj and Pamir Rivers emerge and form the Amu Darya.  A trade route through the valley has been used by travellers going to and from East, South and Central Asia since antiquity.  The term "Wakhan Corridor" can also refer to this constituent valley and the historical trade route through it.  The closure of the Afghan-Chinese border crossing at the Wakhjir Pass, on the east end of the Wakhan Corridor, has left the valley bereft of trade.

Supporting paragraphs: Edmonds station (Washington) Amtrak Cascades
Answer: The Amtrak "Cascades"