This is a nice run just east of Inverness, combining trails in the Culloden Woods with paths around the Culloden Battlefield — site of the 1745 Jacobite uprising and a brutal battle. There’s a wondrfully curated interpretive center that’s worth a visit. We’ve created a mapped route of 8+ miles to use as a guideline — there are options for shorter/longer. See the attached trail maps for additional info. Note: There’s a fee for entering/touring the battlefield site itself.
Start at the Culloden Woods car park. It’s ~2.5 miles around the mostly wide, uneven gravel and earth surface, with some steep slopes. The paths pass battlefield landmarks and pagan traditions at the infamous Prisoner’s Stone and St Mary’s Well. You can then continue onto some of the battlefield paths, which includes a section along Culloden Rd., which has a decent footpath alongside. Note that the battlefield paths are hilly.