There are 10 Diglett to find in Potbottom Desert.
Alolan Diglett #1
This Diglett is hiding by a tree near a Pokemon Den. When you enter Potbottom Desert from Warm-Up Tunnel follow the cliff to your right until you reach this tree and Pokemon Den.
Alolan Diglett #2
This Diglett can be found hiding on top of a hill. This is the closest hill to the Pokemon Den near Diglett #1. Again, when you enter Potbottom Desert from Warm-Up Tunnel follow the cliff to your right until you reach a tree and Pokemon Den.
Alolan Diglett #3
This Diglett is hiding behind the Pokemon Den by the entrance to Warm-Up Tunnel. When exiting the tunnel the Pokemon Den is to your left.
Alolan Diglett #4
This Diglett can be found hiding on top of a hill. The hill is in front of the entrance to Warm-Up Tunnel.
Alolan Diglett #5
When entering Potbottom Desert from Warm-Up Tunnel follow the cliff leftward until you see these two rocks and a tree. The Diglett is hiding in the sand just before the hills.
Alolan Diglett #6
Similar to Diglett #5, when entering Potbottom Desert from Warm-Up Tunnel follow the cliff leftward until you see these two rocks and a tree. The Diglett is hiding by the bush near the rock.
Alolan Diglett #7
Diglett is hiding by a rock opposite the entrance to Warm-Up Tunnel. When exiting the tunnel the rock is slightly to the left.
Alolan Diglett #8
The Diglett is hiding in the sand at the base of the tallest hill in Potbottom Desert. It is towards the back of the desert. To find the Diglett head to the top of the hill and look towards the cliff to spot the single rock and the tree that is growing right up against the cliff. The Diglett is near the rock.
Alolan Diglett #9
When entering Potbottom Desert from Warm-Up Tunnel follow the cliff leftward to the second rock. The Diglett is hiding in front of the rock by a bush.
Alolan Diglett #10
This Diglett can be found hiding in the sand on the path that goes through the base of all the hills in the center of the desert. When entering Potbottom Desert from Warm-Up Tunnel climb over the hill in front of the entrance. In front of you there should be a tree and to the left a Pokemon Den. To your right is Diglett between the tallest hill and the one you were just on.