XX tunnel is located in Sanmenzi Village, XX Street, XXXX District. The entrance is located at XX, Group 3, Sanmenzi Village, XX Street, XXXX District, about 5.00km away from XX Town, about 500m away from Maisan Highway, and about 2.20km away from Provincial Highway S319; The exit is located in Longdongwan, Group 7, Sanmenzi Village, XX Street, XXXX District, about 2.00km away from XX Town, with an organic farming road