This collection is a sub-subgroup under the Montana Department of Transportations records, RS 492. The Maintenance Division oversees the Communications Bureau. To see the other Department of Transportation records, visit the primary finding aid, RS 492.

The collection contains files for the Maintenance division as it existed under the Department of Highways and then as part of the Department of Transportation.

The records for the Department of Highways consist of Subject Files (1927-1991) and Correspondence. Correspondence includes general correspondence of the Governor (1978-1985), and of the Maintenance Division Administrator and Engineer (1970-1985). Also included are files regarding the district and area offices (1953-1991), including: correspondence; "complaint" files; flood files; historical markers files; signing and landmark files; and miscellaneous report and project files, including Kootenai Hydroelectric Facility Project and aerial photographs of Seeley-Swan Highway.

The records for the Department of Transportation are comprised entirely of records documenting the Maintenance Division’s work with Power Engineers and “Touch America”/AT&T to install fiber optic cable in Montana. Documents include field diaries, both bound and loose leaf, written by inspectors and project managers overseeing the project; environmental reports and mitigation plans written by Power Engineers, one of the companies contracted to work on the project; general subject files about the project; and meeting minutes.