From what I have seen there are the following:
Desert scenario 1, 2, 5
Valley scenario 1, 2, 5
Island scenario 1, 2, 5
Badlands scenario 3, 4, 5
Snowy Mountains scenario 3, 4, 5
Bayou scenario 3, 4, 5
Did I miss any?
From what I have seen there are the following:
Desert scenario 1, 2, 5
Valley scenario 1, 2, 5
Island scenario 1, 2, 5
Badlands scenario 3, 4, 5
Snowy Mountains scenario 3, 4, 5
Bayou scenario 3, 4, 5
Did I miss any?
Looks right to me. I own three copies of Discover and have all six of those terrain types associated with the same numbered scenarios.