Nazi gold train: Polish treasure hunters begin detailed scans of hillside

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Aerial View of Nazi Gold Train Search Site

WALBRZYCH, Poland -- Two treasure hunters began detailed tests Tuesday in the hope of revealing a fuller picture of a Nazi train they claim is buried in a hillside.

Piotr Koper and Andres Richter reignited decades of speculation in August when they announced they had located the train close to the town of Walbrzych, Poland.

According to local folklore, a train loaded with gold, jewels and weapons was hidden in a sealed tunnel by Nazi forces retreating from the advance of the Soviet Red Army in 1945.

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Nazi gold train: Polish treasure hunters begin detailed scans of hillside
This file photo from March 2012, shows a part of a subterranean system built by Nazi Germany in what is today Gluszyca-Osowka, Poland. According to Polish lore, a Nazi train loaded with gold, and weapons vanished into a mountain at the end of World War II, as the Germans fled the Soviet advance. Now two men claim they know the location of the mystery train and are demanding 10 percent of its value in exchange for revealing its location. (AP Photo,str)
FILE - This Oct.2010 file picture shows the Ksiaz Castle in , Poland. During World War II, Adolf Hitler began to build a system of long tunnels underneath the castle. According to Polish lore, a Nazi train loaded with gold, and weapons vanished into the mountain at the end of World War II, as the Germans fled the Soviet advance. Now two men claim they know the location of the mystery train and are demanding 10percent of its value in exchange for revealing its location. (AP Photo/str)
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) A tunnel that is part of Nazi underground complex on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) A tunnel that is part of Nazi underground complex on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
WALBRZYCH, POLAND OCTOBER 20: (SOUTH AFRICA AND POLAND OUT) Nazi era railroad tracks, which are believed to lead to the underground city beneath the Ksiaz Castle, on October 20, 2015 In Walbrzych, Poland. The mysterious underground Nazi city Riese where it is alleged that the legendary Nazi Gold Train is hidden. In September 2015 the Polish Army started to examine the neighborhood where it is alleged that two treasure hunters hid a Nazi train filled with guns and jewels. Polish authorities are almost certain they located the train between 61km to 67 km on the railway track between Wroclaw to Walbrzych. Local legend says the train mysteriously went missing in January 1945, moments before the end of World War Two. (Photo by Adam Guz/Getty Images Poland/Getty Images)
Workers are clearing shrubs and trees from the alleged site of a hidden World War Ii Nazi tunnel that, according to two explorers, might contain an armored train with precious minerals in Walbrzych, Poland, Tuesday, Sept. 15, 2015. The Nazi built a system of tunnels and bunkers in the mountains around Walbrzych and local lore, based on research of explorers says they hid a gold train in one of them in 1945. (AP Photo/Natalia Dobryszycka)
Policemen talk to a man at a road block between Walbrzych and Wroclaw, on September 28, 2015 where a rumoured World War II 'gold train' is searched. The area where the Nazi train is supposed to be hidden is now fenced and guarded and soldiers are preparing for searching as treasure-hunters claimed to have located two more Nazi built railway tunnels in southwestern Poland. AFP PHOTO / PIOTR HAWALEJ (Photo credit should read PIOTR HAWALEJ/AFP/Getty Images)
An evacuation tunnel under Ksiaz Castle in Walbrzych, Poland on Wednesday, Sept. 2, 2015 that the Nazis built most probably for Adolf Hitler, leading to massive shelters that are part of a giant system of tunnels and bunkers around Walbrzych and believed by some explorers to hold a gold train that the Nazis allegedly hid in 1945 from the Red Army. Polish authorities recently said that two unidentified men used radar to locate an armored train deep under the woodlands around Walbrzych, and believe it could be the so-called Nazi âgold train.â Rumors have swirled for decades about the train, also said to be filled with weapons, though there is absolutely no evidence that it ever existed. (AP Photo/Czarek Sokolowski)
An evacuation tunnel under Ksiaz Castle in Walbrzych, Poland on Wednesday, Sept. 2, 2015 that the Nazis built most probably for Adolf Hitler, leading to massive shelters that are part of a giant system of tunnels and bunkers around Walbrzych and believed by some explorers to hold a gold train that the Nazis allegedly hid in 1945 from the Red Army. Polish authorities recently said that two unidentified men used radar to locate an armored train deep under the woodlands around Walbrzych, and believe it could be the so-called Nazi âgold train.â Rumors have swirled for decades about the train, also said to be filled with weapons, though there is absolutely no evidence that it ever existed. (AP Photo/Czarek Sokolowski)
An evacuation tunnel under Ksiaz Castle in Walbrzych, Poland on Wednesday, Sept. 2, 2015 that the Nazis built most probably for Adolf Hitler, leading to massive shelters that are part of a giant system of tunnels and bunkers around Walbrzych and believed by some explorers to hold a gold train that the Nazis allegedly hid in 1945 from the Red Army. Polish authorities recently said that two unidentified men used radar to locate an armored train deep under the woodlands around Walbrzych, and believe it could be the so-called Nazi âgold train.â Rumors have swirled for decades about the train, also said to be filled with weapons, though there is absolutely no evidence that it ever existed. (AP Photo/Czarek Sokolowski)
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Koper, a Polish national, and Richter, a German, have already produced what they say is a rudimentary image of the train using ground-penetrating radar.

But now the trees above the site have been cleared, and the Polish military has checked the site for explosives, the treasure-hunting pair were set to carry out three days of more detailed scans.

The works were originally planned for Monday but rain meant the tests had to be postponed until Tuesday.

"We already know, namely, that under the earth there is a train. We need three days of good weather to carry them out," Koper told a press conference Monday.

The pair will use a metal detector, ground-penetrating radar, and a magnetometer, which is used to detect whether objects have magnetic fields.

"Now that the area is cleared of scrub these studies will be much more accurate," Koper added.

Local officials have suggested that because of the annual winter snowfall in Poland digging may not start until the spring.

Arkadiusz Grudzień, a spokesman for the local magistrate in Walbrzych, said "at the moment, we are focusing only on noninvasive testing stage." It was "too early to talk about extracting anything," he added.

WATCH: Hidden treasure: The mystery of the Nazi gold train:

Hidden Treasure: The Mystery of the Nazi Gold Train

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