Table 2 Description of the loops of the Soultz gravity network

Loop 1

 GPK1 – Pyr1 – Pyr2 – Kutzenhausen church – GPK1

Loop 2

 GPK1 – Kutzenhausen church – Pyr3 –Soultz church – GPK1

Loop 3

 GPK1 – Soultz church – Pyr4 – farm – GPK1

Loop 4

 GPK1 – chapel – farm – GPK2 – GPK1

Loop 5

 GPK1 – Soultz church – Hohwiller church – GPK1