Question:  The Silver City Highway links Buronga to the Queensland border via a small town that lies at the confluenece of what two rivers?
Context: Broken Hill is an isolated mining city in the far west of outback New South Wales, Australia.  It is near the border with South Australia on the crossing of the Barrier Highway (A32) and the Silver City Highway (B79), in the Barrier Range.  It is 315 m above sea level, with a hot desert climate, an average rainfall of 235 mm .  The closest major city is Adelaide, the capital of South Australia, which is more than 500 km to the southwest and linked via route A32. The Silver City Highway is a 683 km highway that links Buronga, New South Wales to the Queensland border via Wentworth, Broken Hill, and Tibooburra, in the arid Far West region of New South Wales.  A short branch also connects to the Calder Highway on the Victorian border at Curlwaa.  This branch is also signed as the Calder Highway, despite legally being part of the Silver City Highway.  Parts of the highway north of Broken Hill are unsealed. Wentworth is a small border town in the far south west of the state of New South Wales, Australia.  It lies at the confluence of Australia's two most important rivers, the Darling and the Murray, the latter forming the border with the state of Victoria to the south.  The border with the state of South Australia lies approximately 100 km to the west.  The town of Wentworth is in the local government area of the same name. The Peak Downs Highway links the towns of Mackay and Clermont in the Australian state of Queensland.  It represents the main link between Queensland's Whitsunday Coast and the Central West region of the state.  The highway runs for a total length of 266 km , before joining the Gregory Highway (Highway A7, formerly Highway 55) south to Clermont.  Major settlements served by this route include Mackay, Walkerston, Nebo, Moranbah (10 km north of the highway, but the largest town along the route) and Clermont. Silver City, Pinos Altos and Mogollon Railroad (SC,PA&M) was a narrow gauge railway serving copper mines along the Continental Divide in the mountains of southwestern New Mexico.  The communities of Silver City and Pinos Altos developed as 19th century miners recovered easily extracted gold and silver from ore deposits of the area.  Standard-gauge Santa Fe Railroad reached Silver City in 1886, and SC,PA&M was incorporated 24 August 1889 to build a railway north to Mogollon, New Mexico.  Construction was limited to 5 mi of grading until Wisconsin-based Comanche Mining and Smelting purchased the railroad and the Pinos Altos mining claims of George Hearst in 1903 after horse-drawn ore transport became uneconomical.  The Silver City smelter burned shortly after purchase, but was rebuilt with three blast furnaces and a reverberatory furnace to handle 225 tons of ore per day.  Two Shay locomotives were moved to Silver City in August 1905 from the Gilpin tramway of Gilpin County, Colorado.  The railroad was built through iron and limestone mines on Chloride Flat west of Silver City.  The limestone was used as a flux for smelting the copper ore. State Route 225 (SR 225) is a state highway in Elko County, Nevada, United States.  Known as the Mountain City Highway, it connects the city of Elko to the town of Owyhee near the southwestern Idaho border via Mountain City.  The route provides connections to Mountain Home, Idaho and Interstate 84 via Idaho State Highway 51. Two Rivers High School is a high school located in Two Rivers, Wisconsin.  It was built in 2001 to replace the former Washington High School in downtown Two Rivers.  The School is located at 4519 Lincoln Avenue Wisconsin Highway 42 on the outskirts of Two Rivers.  The school athletically takes part in the Eastern Wisconsin Conference.  Conference rivals include Plymouth High School and Kiel High School.  A total of 24 Credits and 20 Community Service Hours are required in order to graduate from the school. Birgunj ("also" Birganj) (Nepali: बीरगंज) is a metropolitan city and border town in Parsa District in the Narayani Zone of southern Nepal.  It lies 135 km south of the capital Kathmandu, attached in the north to Raxaul in the border of the Indian state of Bihar.  As an entry point to Nepal from Patna and Kolkata, it is known as the "Gateway to Nepal".  The town has significant economic importance for Nepal as most of its trade with India is via Birgunj and the Indian town of Raxaul.  Tribhuvan Highway links Birgunj to Nepal's capital, Kathmandu.  It was declared as a Metropolitan City on 22 May 2017 along with Biratnagar. Silver City Airways was a private, British independent airline formed in 1946.  The name "Silver City" was derived from the eponymous Australian mining town at Broken Hill, where "The Zinc Corporation" was headquartered.  Silver City's first commercial flight departed London Heathrow for Sydney via Johannesburg in late 1946.  The following year, Silver City leased its first Bristol Freighter, moved its base to Blackbushe and participated in the airlift of Hindu and Muslim refugees between Pakistan and India.  In 1948, control of Silver City passed from the Zinc Corporation to British Aviation Services.  In July of that year, the airline inaugurated the world's first air ferry service across the English Channel between Lympne Airport and Le Touquet Airport.  In 1948–49, Silver City participated in the Berlin Airlift.  In 1949, it established a French sister airline. Calder Highway is a highway in Australia, linking Melbourne in Victoria, to Bendigo and Mildura and the Victoria/New South Wales border on the way to Broken Hill.  It continues through New South Wales to Broken Hill, Tibooburra and the New South Wales/Queensland border as the Silver City Highway, posted as route B79 as far as Broken Hill.
Answer: the Darling and the Murray