Arkils tingstad

Another view sees the assemblies as meetings for the chieftains only who merely stated what they had decided to do and where they interrogated and punished their subordinates.

It is possible that the Skålhamra clan created the assembly location in order to have settlements around the lake baptized by priests from Sigtuna.

...[Ulfkell](?)ukok* arkilArnkell* ukok* kuiGyi* þiʀþæiʀ* kariþugærðu* iarhiar* þikstaþþingstað.........unu[M]unu* ikiæigimirkimærki* maiʀimæiʀi* uirþaverða,* þanþan* ulfsUlfs* suniʀsyniʀ* iftiʀæftiʀ* kir...gær[ðu],...iʀ[sniall]iʀ* suinaʀsvæinaʀ,* atat* sinsinn* faþurfaður....

ok {} Arnkell {} ok {} Gyi {} þæiʀ {} gærðu {} hiar {} þingstað ... [M]unu {} æigi mærki {} mæiʀi {} verða, {} þan {} Ulfs {} syniʀ {} æftiʀ {} gær[ðu], [sniall]iʀ {} svæinaʀ, {} at {} sinn {} faður.Ulfkell(?)

This is the classification, which is also known as Ringerike style, for those inscriptions that have runic bands that end in serpent or animal heads depicted in profile.

[3] U 226 is the only surviving runestone signed by Gunnar, although more than forty other inscriptions have been attributed to him based on stylistic analysis.

The runes kunar ik stin for "Gunnarr cut the stone" are carved in a line below the rest of the inscription.

The assembly location. To the right of the stone formation, the two runestones can be seen, and in the background there is the lake.
The stone formation.
U 225.
U 226.