Tern’s Watch is located in a mountainous region, marked by elevated terrain and significant landmarks. The area contains large pictographs embedded in the mountainside, standing 20 to 30 feet tall, arranged in sequences that align with smaller stones found at a nearby witch's camp. These pictographs indicate historical significance and may be linked to ancient practices. The climate reflects a high-altitude environment, with snow near the peaks and limited vegetation above the tree line.
Tern’s Watch serves as a connection point between various routes, including the ancient Amber Reach and settlements such as Dolm's Break and St. Thera’s Remit. It features a rugged ascent, with pre-set pitons along the path, and is associated with challenges like avalanches. A notable point on the journey is a moon symbol observed about five miles into the area, although no cave or entrance is found at the carving site. The deep grooves in the rock provide shelter for travelers camping beneath the pictographs.
The settlement is characterized by its rugged terrain and proximity to the mountains, serving as a strategic waypoint for travelers navigating the surrounding wilderness. Steep cliffs and rocky paths are often treacherous, providing access to vital routes leading to Drosven’s Gate and Grithmaar Deep. The climate is typically harsh, influenced by the mountains, with cold winds and potential snowfall. Inhabitants include a mix of locals and refugees, creating a diverse community focused on survival and trade. The settlement is known for its association with scavengers and potentially dangerous individuals. Recent developments indicate ongoing movement and resettlement, highlighted by the departure of approximately fifteen refugees towards Tern’s Watch. Travelers often seek to avoid the Thistleglass region to minimize encounters with hostile factions.