Archaeologists said they want the U.K. government to rethink plans proposed to build a 1.8 mile-long tunnel under Stonehenge in Wiltshire.

Archaeologists from the University of Birmingham conducted a dig at Blick Mead and discovered charcoal as well as other objects including flints at the mesolithic encampment site, dated 4,000 B.C., according to The Guardian.

The archaeologists say they have an opportunity to learn more about the earliest chapter of British history, but these chances could be squashed if plans for the tunnel move ahead, according to the Salisbury Journal.

Prime Minister David Cameron proposed the plans to make a duel carriageway on the A303 highway and create a tunnel to divert traffic from the World Heritage site, according to the Daily Mail.

The A303 is one of Britain's most heavily traffic-congested roads leading into the Southwest. The National Trust, the English Heritage and transport groups support the plans for the tunnel.

The Daily Mail said supporters hope the tunnel brings the public more access to the wider prehistoric landscape, alleviates traffic and benefits local wildlife.

Furthermore, Member of Parliament for Salisbury John Glen said the tunnel is the best option for diverting traffic from the A303, and the tunnel will be carefully planned and evaluated, according to the Salisbury Journal.

However, not everyone agrees that the tunnel is the best plan for relieving traffic on the A303.

According to The Daily Mail, chairman of the Amesbury Museum and Heritage Trust Andy Rhind-Tutt believes a better solution would be to reroute the A303 supporting South Wiltshire and the West Country