Question: In what town with a population less than 600 could one have found the attraction, World's Largest Farm Tractor, in 1998?

full_context: Document 1: Sand Springs, Montana: Sand Springs is an unincorporated community in southwestern Garfield County, Montana, United States. It lies along Highway 200 southwest of the town of Jordan, the county seat of Garfield County. Its elevation is 3,192 feet (973 m). Although Sand Springs is unincorporated, it has a post office with the ZIP code of 59077, which opened on 1911-03-01. Sand Springs is over 100 years old, founded at the turn of the 20th century by sheep, cattle, and horse ranchers. It has a population of about 90 people. It gets its name from the wide expanse of sandy soil and life-giving springs in the area. Most people currently make a living as ranchers and farmers. The farmable acres in this area are some of the richest, most productive soils in the county; however much of the land is suitable only for grazing due to the terrain. There is a family-owned reservoir that is open to the public for fishing. The economy is supported by recreation -there is excellent hunting, fishing, and camping opportunities available all year round. Just check in at the Fish, Wildlife, and Parks station located in the center of town. There is a General Store attached to the Post Office. It has lunch available that you can eat at a picnic table. People are allowed to camp behind it. There is a church that has a service every other Sunday. It is the location of the annual Christmas program put on by the school. Sand Springs School is a one-room schoolhouse that serves kindergarten through eighth grade.
Document 2: Bozeman, Montana: Bozeman is a city in and the county seat of Gallatin County, Montana, United States, in the southwestern part of the state. The 2010 census put Bozeman's population at 37,280 and by 2016 the population rose to 45,250, making it the fourth largest city in the state. It is the principal city of the Bozeman, MT Micropolitan Statistical Area, consisting of all of Gallatin County with a population of 97,304. It is the largest Micropolitan Statistical Area in Montana and is the third largest of all of Montana’s statistical areas.
Document 3: Big Sky, Montana: Big Sky is a census-designated place (CDP) in Gallatin and Madison counties in southwestern Montana. As of the 2010 census it had a population of 2,308. It is 45 mi southwest of Bozeman. This unincorporated community straddles the two counties, is not considered a town, and has no town government. The primary industry of the area is tourism.
Document 4: Kumsong Tractor Factory: The Kŭmsŏng Tractor Factory, located in Kiyang-dong, Kangsŏ-guyŏk, Namp'o, is North Korea's largest manufacturer of tractors, bulldozers, and other agricultural equipment. Employing around 10,000 workers, the factory has a floor area of 142,000 m2 on a total area of 400,000 m2 . Although it has a production capacity of 10,000 tractors per year, at present the average annual output is around 200 tractors. The factory's current products include the "Ch'ŏllima 28" 28 hp , "Ch'ŏllima 32" 32 hp , "Ch'ŏllima 40" 40 hp , "P'ungnyŏn 75" 75 hp , "Sonyŏn" 45 hp and "Ch'ŏllima 2000" tractors, and the "P'ungnyŏn" bulldozer. This factory also produces TEL mobile missile platforms.
Document 5: Big Sandy, Montana: Big Sandy is a town in Chouteau County, Montana, United States. The population was 598 at the 2010 census. Big Sandy, Montana, is where the Big Bud 747, the largest farm tractor in the world, was located from 1997 until 2009. The Lewis and Clark Trail, following U.S. Route 87, goes through Big Sandy and in 2011 the town was named in a list of "Most Livable Small Towns" by Montana Outdoors magazine.
Document 6: Big Bud 747: The Big Bud 747 or 16V-747 Big Bud is a large, custom-made farm tractor built in Havre, Montana in 1977. It is billed by the owners and exhibitors as the "World's Largest Farm Tractor". It is about twice the size of many of the largest production tractors in the world, depending on parameter.
Document 7: Mahindra Tractors: Mahindra Tractors is an international farm equipment manufacturer of Mahindra & Mahindra. In 2010, Mahindra became the world's highest-selling tractor brand by volume. Mahindra's largest consumer base is in India, China, North America, and a growing market in Australia. The company is the largest manufacturer in India and has the capacity to build 150,000 tractors a year.
Document 8: Caterpillar 797B: The Caterpillar 797B is an off-highway, ultra class, two-axle, mechanical powertrain haul truck developed and manufactured by Caterpillar Inc. in the United States specifically for high production mining and heavy-duty construction applications world-wide. The 797B is the second generation of the 797 series. The 797B was introduced to the public in spring of 2002 and first entered service with a customer in October, 2002. The 797B remained in production until December, 2009 when Caterpillar started full production of the 797B's successor, the 797F. While it was in production, the 797B was Caterpillar's largest, highest payload capacity haul truck model.
Document 9: John Deere DB120: The John Deere DB120 is an agricultural planter made by Bauer Built Mfg. in Paton, Iowa. Upon its release in 2009, it was the largest production planter in the world. It has a 120 ft wide tool-bar and plants 48 rows which are 30 in apart. It is estimated that the planter should sow 90 to 100 acre per hour at 5 to 5.5 miles per hour ground speed. This means that in a 12-hour day it will plant almost two sections of land. John Deere claims that the planter is 30% more productive than their 36 row DB90 planter. To transport such an incredibly wide implement, the DB120 folds into five sections . The planter weighs in at over 20 tons empty and almost 24 tons when loaded with seed. The DB120 had a limited release in 2009 with orders being taken for the 2010 season. It retailed at (US)$345,000 dollars.
Document 10: Flathead County, Montana: Flathead County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 90,928, making it the fourth-most populous county in Montana. Its county seat is Kalispell. The numerical designation for Flathead County (used in the issuance of license plates) is 7. It is south from the Canada–US border of British Columbia.
Document 11: Hiboy: A Hiboy is a specialized, high-clearance type of farm tractor designed to operate in high crops without damaging them. The largest producer of hiboys is Hagie Manufacturing Company of Clarion, Iowa, United States. The most common uses of hiboys are for detasseling, spraying herbicides, and applying glyphosate directly to weeds growing above crop height with a wick or wiper.
Document 12: Flathead Valley: The Flathead Valley, located in Northwestern Montana, is a region of the U.S. state of Montana. It includes Flathead County, and part of Lake County. Notable towns include Bigfork, Kalispell, Columbia Falls, Polson, and Whitefish. The geography of the Flathead roughly corresponds to the valley where Flathead Lake is located. In addition to the lake, the area's proximity to attractions such as Glacier National Park and Whitefish Mountain Resort have made the area a major resort destination. Many outdoor activities can be pursued there such as hiking, backpacking, rafting, canoeing, skiing, hunting, and some of the best trout fishing in the world. The Flathead Valley is also home to a portion of the Flathead Indian Reservation.
Document 13: Trout Creek, Montana: Trout Creek is a census-designated place (CDP) in Sanders County, Montana, United States. The population was 261 at the 2000 census. Trout Creek was proclaimed "Huckleberry Capital of Montana" by the state's legislature in 1981.
Document 14: Chouteau County, Montana: Chouteau County is a county located in the North-Central region of the U.S. state of Montana. As of the 2010 census, the population was 5,813. Its county seat is Fort Benton. The county was established in 1865 as one of the original nine counties of Montana, and named in 1882 after Pierre Chouteau, Jr., a fur trader who established a trading post that became Fort Benton, which was once an important port on the Missouri River.
Document 15: Planter (farm implement): A planter is a farm implement, usually towed behind a tractor, that sows (plants) seeds in rows throughout a field. It is connected to the tractor with a drawbar or a three-point hitch. Planters lay the seeds down in precise manner along rows. Planters vary greatly in size, from 1 row to 48, with the biggest in the world being the 48-row John Deere DB120. Such larger and newer planters comprise multiple modules called row units. The row units are spaced evenly along the planter at intervals that vary widely by crop and locale. The most common row spacing in the United States today is 30 inches.
ground_truth: Big Sandy, Montana