 The structural integrity of the tunnel is solid and almost no cracking is apparent minus an enlarged vent halfway through the tunnel.In 1999 this vent was impacted by a rock slide, however in 2000 the town of Walhalla re-excavated the tunnel and safely returned it to public use.After a developer attempted to purchase the property from the City of Walhalla in 2007, Naturaland Trust, a conservation agency created by C. Thomas Wyche, pledged about $2 million to protect the surrounding property; and a consortium of non-profit conservation groups, private individuals, and the state of South Carolina provided the money and resources to preserve the mountain for public use.