|   | |
| Location | near Gatehouse of Fleet, Dumfries and Galloway | 
|---|---|
| Coordinates | 54°52′43.97″N4°12′3.42″W / 54.8788806°N 4.2009500°W | 
| OS grid reference | NX58895601 | 
| Type | hillfort | 
| Length | 29 m (95 ft) | 
| Width | 17 m (56 ft) | 
| Area | 0.04 ha (0.099 acres) (summit enclosure) | 
| History | |
| Founded | c. 600 AD | 
| Abandoned | early 7th century | 
| Site notes | |
| Excavation dates | 1960, 2012 | 
| Designated | 19 January 1926 | 
| Reference no. | SM1100 | 
Trusty's Hill is a small vitrified hillfort about a mile to the west of the present-day town of Gatehouse of Fleet, in the parish of Anwoth in the Stewartry district of Dumfries and Galloway.
The site is notable for a carved Pictish stone located near the entrance to the fort, one of only a handful of such stones found outside the core Pictish heartland of North-East Scotland. A 2012 archaeological investigation found evidence of feasting and high-status metalworking at the site, and what has been interpreted as a constructed ceremonial processional route. Together these have led to speculation that the site might have been an important centre or location of royal inaugurations for a Brythonic kingdom centred in Galloway and South-West Scotland, circa 600 AD — perhaps to be identified with the elusive north British kingdom of Rheged, which gained greatest prominence under its legendary leader Urien at a similar time in the late 6th century before apparently utterly disappearing in the early 7th century.