It looks like the entrance to any of a thousand West Country farms.
But along a south Wiltshire track next to this sign lies the global headquarters of an oil exploration company that has found considerable reserves just off the Falkland Islands.
The firm concerned, Rockhopper Exploration, revealed the 'fantastic' find – which could potentially be worth billions – to investors this week.
The firm has its headquarters at a rural business park – essentially a converted barn – just off the A360 north of Salisbury.
Given the continuing political sensitivities surrounding the Falklands, this could inevitably heighten tensions between Britain and Argentina. Argentina invaded the Falklands in 1982, leading to a conflict that cost 260 British and 650 Argentine lives.
It still claims territorial rights to the islands and the waters surrounding them.
Argentinian president Cristina Fernandez de Kirchner said in a speech this week that Argentina had always been a victim of colonialism. She said; "Our land has always been invaded, first by the Spanish, then by the English."
Last month Argentina protested when Defence Secretary Michael Fallon announced Britain would upgrade defences on the islands. It came after news Russian president Vladimir Putin was reportedly working on a deal to lease 12 Sukhoi Su-24 bombers to Argentina.
Mrs Fernandez de Kirchner's speech came days after the Argentine Secretary for Malvinas Island Affairs, Daniel Filmus announced legislation passed in 2013 would be used to prosecute foreign oil companies that it alleged were breaking Argentine law by prospecting or extracting oil in the country's territory.
Britain has rejected the law, arguing it could not be applied to the zone around the Falkland islands over which Britain has legal ownership.
Lord West of Spithead, a former First Sea Lord, told the Daily Mail the find would lead to further claims by the Argentinians over the disputed South Atlantic territory.
"The rhetoric and sabre-rattling from Argentina will grow," he added. "The Argentinians have always been worried we will find oil and, given their economic state, they will think, 'We should have it'.
"We will have to be careful. The only way to stop them (acting) is to ensure we have sufficient military there. The rhetoric from Argentina will get worse."
Rockhopper was founded in 2004 and struck a major deal in 2012 with the much bigger Premier Oil.
The larger firm paid $231 million upfront to Rockhopper, plus a further $720 million towards development costs in the so-called Sea Lion exploration area.
The reservoirs were bigger and of a higher quality than anticipated.
Though given the low oil price at the moment and considerable operational difficulties of extracting oil from the South Atlantic it is by no means a certainty that production will begin any time soon.
Samuel Moody, chief executive of Rockhopper, said: "This is a fantastic start to the 2015 Falklands drilling campaign and provides early proof of the significant remaining potential of the North Falkland Basin.
"In addition to the new discoveries at Zebedee and Hector, we have good oil shows throughout the deeper F3 section which is encouraging should better quality reservoir be encountered in this section elsewhere in the basin.
"Having retained the sub-surface lead for North Falkland Basin exploration in the farm out to Premier in 2012, I am delighted to report that our exploration team now enjoys a success rate of 8 out of 10 wells in licences PL004 and PL0032.
"The new discoveries add to our already significant resources we have discovered in the basin and we now look forward to drilling the higher risk Isobel prospect before the rig moves to drill in the South Falkland Basin."
Andrew Lodge, exploration director of Premier Oil said: "We are delighted to announce the discoveries in the Hector and Zebedee fans, which extend the play fairway further south from Sea Lion and the satellites.
"They will add further resource to future phases of development in the area. We now look forward to the results of the upcoming Isobel Deep well, potentially the highest impact well in this campaign."