Clyde Edward Pangborn ("c".
 October 28, 1895 – March 29, 1958) also known as "Upside-Down Pangborn" was an American aviator and barnstormer who performed aerial stunts in the 1920s.
 In 1931 Pangborn and co-pilot Hugh Herndon, Jr. flew their plane, "Miss Veedol", on the first non-stop flight across the Pacific Ocean.
Charles Augustus Lindbergh (February 4, 1902 – August 26, 1974), nicknamed Slim, Lucky Lindy, and The Lone Eagle, was an American aviator, military officer, author, inventor, explorer, and environmental activist.
 At age 25 in 1927, he went from obscurity as a U.S. Air Mail pilot to instantaneous world fame by making his Orteig Prizewinning nonstop flight from Long Island, New York, to Paris.
 He covered the 33 ⁄ -hour, 3,600 smi alone in a single-engine purpose-built Ryan monoplane, "Spirit of St. Louis".
 This was the first solo transatlantic flight and the first non-stop flight between North America and mainland Europe.
 Lindbergh was an officer in the U.S. Army Air Corps Reserve, and he received the United States' highest military decoration, the Medal of Honor, for the feat.
The Douglas Cloudster was a 1920s American biplane aircraft.
 It was the only product of the Davis-Douglas Company; designed to make the first non-stop flight coast-to-coast across the United States.
Vancouver is a city on the north bank of the Columbia River in the U.S. State of Washington, and the largest suburb of Portland, Oregon.
 Incorporated in 1857, it is the fourth largest city in the state, with a population of 161,791 as of April 1, 2010 census.
 Vancouver is the county seat of Clark County and forms part of the Portland-Vancouver metropolitan area, the 23rd largest metropolitan area in the United States.
 Originally established in 1825 around Fort Vancouver, a fur-trading outpost, the city is located on the Washington–Oregon border along the Columbia River, directly north of Portland.
 In 2005, "Money" magazine named it No. 91 on its list of best places in America to live.
 In 2016, WalletHub ranks Vancouver the 39th best place to live for families in the US.
The Hispano-Suiza 12N was one of two new V-12 engine designs first run in 1928 and was manufactured by Hispano-Suiza's French subsidiary for the Armee d'l'Air.
 It produced about 485 kW , was the first to use gas nitride hardening and introduced wet cylinder liners into Hispano-Suiza's aircraft engine range.
 It powered the first non-stop flight from Europe to the United States.
Alexander Vasilyevich Belyakov (Russian: Алекса́ндр Васи́льевич Беляко́в ; 21 December 1897 [O.S. 9 December] – 28 November 1982) was a Soviet flight navigator who, together with command pilot Valery Chkalov and co-pilot Georgy Baydukov, set a record for the longest uninterrupted flight in 1936 and made the first non-stop flight across the North Pole, flying from Moscow to Vancouver, Washington.
Wilmer Lower Stultz (April 11, 1900 – July 1, 1929) was an aviator who made the first non-stop flight between New York City and Havana, Cuba.
 He died in a crash in 1929.
Flying Officer Leslie Hamilton {'1': ", '2': ", '3': ", '4': "} , was a British World War I flying ace credited with six aerial victories.
 He disappeared while attempting the first non-stop east-west flight across the Atlantic Ocean.
 His Fokker F.VIIa, named "St. Raphael", was last seen in mid-Atlantic by SS "Josiah Macy", a Standard Oil ship.
The Westin Portland Harborview is a historic hotel in Portland, Maine, United States.
 It was designed by Portland architect Herbert W. Rhodes.
 When it opened in 1927 as The Eastland, the hotel gained fame as the largest hotel in New England.
 Aviator Charles Lindbergh stayed in it after returning from the solo non-stop flight across the Atlantic Ocean.
 In 1946, it gained attention when it refused to allow former first lady Eleanor Roosevelt to stay with her dog for the night.
The Pangborn-Herndon Memorial Site is a monument in East Wenatchee, Washington, United States, dedicated to Clyde Edward Pangborn and Hugh Herndon, Jr., the two men who made the first non-stop flight across the Pacific Ocean.
 They departed from Misawa, Japan, on October 4, 1931, and landed near this site 41 hours later.
 The memorial is northeast of East Wenatchee and consists of a 14 ft , 14 shton basalt column atop a concrete base.
 The column is topped by 36 in wings made of aluminum.

Question: What Washington county did Alexander Vasilyevich Belyakov land in at the end of the first non-stop flight across the North Pole?
Answer: Clark County