The Barony of Three Mountains (Clackamas and Multnomah Counties, OR) is located in the central region of An Tir.
- Three Mountains website
- Early Three Mountains events can be gleaned from Category:Timeline. Start in An Tir Timeline IV.
- Three Mountains Shopping
- Kaldor Ness
The Plume, newsletter for the Barony of Three Mountains is available online at no charge, in both .pdf and .doc formats.
Three Mountains became a Barony in March of A.S. III 1969.
- 4 May XXXVII/2002: Three Mountains Baronial Championship XXXVII/2002
- 14-16 June XXXVII/2002: War College, attended by Wilam and Siobhan