Question: William Lewis Sublette exploited the riches along a wagon route that is how many miles long?

Context paragraphs:
William Sublette: William Lewis Sublette also spelled Sublett (September 21 1798 - July 23 1845), was a pioneer, frontiersman, trapper, fur trader, explorer, and mountain man, who, with his four brothers, after 1823, became an agent of the Rocky Mountain Fur Company and later, one of its co-owners, exploiting the riches of the Oregon Country, which helped settle and improve the best routes, along the Oregon Trail.

Route of California High-Speed Rail: The California High-Speed Rail system will be built in two phases.  Phase 1 will be about 520 miles long, and is planned to be completed in 2029, connecting the downtowns of San Francisco, Los Angeles, and Anaheim using high-speed rail through the Central Valley.  In Phase 2, the route will be extended in the Central Valley north to Sacramento, and from Los Angeles east through the Inland Empire and then south to San Diego.  The total system length will be about 800 miles long.  Phase 2 has no dates as yet.

Pyrmont, Ohio: Pyrmont is an unincorporated community in northwestern Perry Township, Montgomery County, Ohio, United States.  It lies at the intersection of Sulphur Springs and Providence Roads with the Brookville-Pyrmont Pike.  Located in the far west of the county, it lies several miles from the city of Dayton; the nearest city is Brookville, 3 miles (5 kilometers) to the northeast.  Pyrmont is a part of the Brookville Local School District.  Pyrmont was a busy town before interstate 70 was established near Brookville.  Pyrmont was on the Stage Coach Wagon route.  Then Interstate 70 was formed.

Oregon Trail: The Oregon Trail is a 2170 mi historic east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon.  The eastern part of the Oregon Trail spanned part of the future state of Kansas, and nearly all of what are now the states of Nebraska and Wyoming.  The western half of the trail spanned most of the future states of Idaho and Oregon.

Rock shelter: A rock shelter — also rockhouse, crepuscular cave, bluff shelter, or abri — is a shallow cave-like opening at the base of a bluff or cliff.  In contrast to solutional cave (karst) caves, which are often many miles long, rock shelters are almost always modest in size and extent.

Bows for Musical Instruments of the Violin Family: Bows for Musical Instruments of the Violin Family is a seminal luthier reference book compiled by the late Chicago violinist Joseph H. Roda (1894–1963) and published in 1959 by William Lewis and Son of Chicago.  The book is about bows and bow makers and includes detailed illustrations prepared by Gladys Mickel Bell (1901–1992).  Roda had been a violinist with the Chicago Grand Opera Company from 1933 to 1935 and a violist with the Chicago Symphony from 1936 to 1956 Bell, at the time, was a violinist, cellist, music educator, and sales person at William Lewis and Son.

Mormon Road: Mormon Road, also known to the 49ers as the Southern Route, of the California Trail, was a seasonal wagon road first pioneered by a Mormon party from Salt Lake City led by Jefferson Hunt, that followed the route of Spanish explorers and the Old Spanish Trail across southwestern Utah, northwestern Arizona, southern Nevada and the Mojave Desert of California to Los Angeles in 1847.  From 1855, it became a military and commercial wagon route between California and Utah, called the Los Angeles - Salt Lake Road.  In later decades this route was variously called the "Old Mormon Road", the "Old Southern Road", or the "Immigrant Road" in California.  In Utah, Arizona and Nevada it was known as the "California Road".

Wollunqua: In Australian aboriginal mythology, Wollunqua (or Wollunka, Wollunkua) is a snake-god of rain and fertility, who emerged from a watering hole in the Murschison Mountains.  Wollunqua is said to be many miles long.

William Lewis Moody, Sr.: Colonel William Lewis Moody, Sr. (May 19, 1828 – July 17, 1920) was an American entrepreneur who founded the Moody dynasty in Galveston, Texas.  He participated in the Civil War on the side of the Confederacy.  On January 19, 1860, he married Pherabe Elizabeth (Lizzie) Bradley.  He is noted for persuading federal and local government to dredge Galveston's harbor, which led to Galveston becoming a prominent shipping port of the 19th century.  He was survived by his son, William Lewis Moody, Jr..

Landsat program: The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth.  On July 23, 1972 the Earth Resources Technology Satellite was launched.  This was eventually renamed to Landsat.  The most recent, Landsat 8, was launched on February 11, 2013.  The instruments on the Landsat satellites have acquired millions of images.  The images, archived in the United States and at Landsat receiving stations around the world, are a unique resource for global change research and applications in agriculture, cartography, geology, forestry, regional planning, surveillance and education, and can be viewed through the U.S. Geological Survey (USGS) 'EarthExplorer' website.  Landsat 7 data has eight spectral bands with spatial resolutions ranging from 15 to 60 meters; the temporal resolution is 16 days.  Landsat images are usually divided into scenes for easy downloading.  Each Landsat scene is about 115 miles long and 115 miles wide (or 100 nautical miles long and 100 nautical miles wide, or 185 kilometers long and 185 kilometers wide).

Supporting paragraphs: William Sublette Oregon Trail
Answer: 2170