Beyond the single, spectacular early evidence of the Thorsberg chape, Ullr's presence is written across the actual map of Scandinavia in a density of place-names that scholars have studied as a kind of archaeology of a vanished cult. In Sweden, a site called Ullevi, meaning Ullr's sanctuary or Ullr's shrine, has been identified and, in at least one case near modern Linkoping, archaeologically investigated, with excavations uncovering features consistent with a pre-Christian cultic site, offering rare physical confirmation to match the toponymic evidence.
Norway preserves a comparable cluster, including Ullensaker and Ullensvang, names built on Ullr's own alongside elements meaning field or headland, and similar Ull- place-names recur across both countries in patterns that concentrate in certain regions, particularly southeastern Norway and central Sweden, while being comparatively rare or absent elsewhere, a distribution scholars have used to argue for a cult that was regionally concentrated rather than spread evenly across the whole Norse-speaking world. This pattern, a god richly present in the landscape but almost silent in the narrative mythology that survives, has led many specialists in Norse religion to conclude that Ullr's documented worship and his surviving stories are seriously out of proportion with one another, the toponyms suggesting a genuinely major regional cult, especially in the earlier Iron Age and Viking Age, that the later, Christian-era literary sources, composed and compiled after Ullr's cult had faded from active practice, simply had little living reason to describe in detail by the time anyone wrote them down.