The remote Slochd summit on the A9 will be included in the latest ground investigation contract for the A9 Dualling programme awarded to Raeburn.
Raeburn Drilling and Geotechnical will undertake the £5M contract due to start next month and last until March 2019.
This section of the A9 dualling includes the second highest point on the A9 at over 396m above sea level is part of the challenging 24km Dalraddy to Slochd stretch of the route.
Cabinet Secretary for Transport, Infrastructure and Connectivity Michael Matheson said: “The A9 Dualling programme between Perth and Inverness is one of the largest and most challenging infrastructure projects in Scotland’s history and we will be starting the latest of a series of ground investigations on the route.
“Having published draft Orders for the Dalraddy to Slochd scheme at the end of August, we are now carrying out further ground investigations starting next month to help inform the design work for the section of the route which includes the dramatic rock face at Slochd.”
Last month Raeburn was awarded the £4M ground investigation contract for the 9.7km stretch of the route between Tomatin and Moy - the most northerly section of the A9 dualling programme.