![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/54b60b52-3e33-4a73-a360-0a41e51dddba_rw_1920.jpg?h=eedf251464ad0464224080aef2660ed0)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/082f8bd9-2946-48c8-ab6f-4eddcbc4eb6a_rw_1920.jpg?h=1c13a3bbfde0170713f6fc4da3805e87)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/2c6e1899-456f-4a8d-9d5d-85d22d3ee215_rw_1200.jpg?h=b50e5e04a51e5c0d555e1a38a6300a36)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/bc870e8c-1118-4c3f-a273-563f4c3466c4_rw_1920.jpg?h=a019e0c78402370315fcfb6ebef98845)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/7568c4f2-58bc-44ea-acd6-9c92b3301fd1_rw_1200.jpg?h=d692f463cd207ad4e33cbedbb0c52ba5)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/274a76be-1ce9-4dc3-bb09-4177b891e727_rw_1200.jpg?h=ed6e7d07eaf10c7c77c271261350f4c3)
Landmark buildings help with orientation. In this sketch the base of the Limmat valley shows a full featured typical ice age river valley while the hills still show the Panorama's original state - only the colours where slightly adapted.
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/c3374496-d947-4a0d-a8eb-82ea4b1da59f_rw_1200.jpg?h=f022176ddeb29d60f382f0c069023f5a)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/cc3b46d6-2d4b-45fc-8dff-b5918577101f_rw_1200.jpg?h=f787179a47da21736f25b6a396118e2b)
![](https://cdn.myportfolio.com/33af66a4faf44aa02b3d3b9286f874fc/0eb7a444-5a74-42cd-996f-6499bc0645c1_rw_1200.jpg?h=ce05899b29d5765bfcd2d8a99b63e096)
In this animation sketch the Limmat glacier ploughs down the valley. Never mind the flicker...