The Mountaineer Militia of Storm Keep
This elite group is based at Storm Keep, so named because the small lake north of the keep has a weather system all its own, lying as it does in a deep narrow valley. The mists and rain can sweep down from the hillsides very unpredictably.
In addition, Carstane Geronten (N male human Fighter L12) commands the garrison. Camaraderie is high among this force, which has superb morale and is very well paid. The Mountaineers are well equipped, with single-use magical items such as potions of invisibility and invulnerability, and a ring of featherfall available to pilots on flights. A posting to Storm Keep is much sought after by many militiamen.
Storm Keep boasts 12 mature adult griffons trained for flying, and four young that are currently being reared and trained. The remit of the griffon riders is to spy and map, to seek out uncontacted groups of demi-humans and adventurers, and to identify powerful monsters (such as giants) that may present a threat to the area. The Mountaineer Militia does not go out looking for trouble, however.
The Mountaineers are always on the lookout for anyone living in the Abbor-Alz who might be friendly to Greyhawk, so that a treaty of protection in return for taxes can be established by an agent of the Directors of the Free City. So far, six gnomish groups and one dwarven clan, all within 30 miles of Storm Keep, have proven amenable to such approaches. When agreements spread further afield, the Mountaineers may well have a second keep established to enable them to travel farther. Information from aerial spying is given to friendly groups. Foot patrols of 8-12 men also visit allies and give protection if the need arises.
Storm Keep itself is a stronghold that has been largely repaired from its state as a ruined and abandoned wizard’s keep. The outer walls are now fully repaired, while work continues on internal buildings. Twelve dwarves oversee work on the site. It may not be the case that all the dungeons below it have been fully explored, however!