Fort Duckburg, from Barks' "The Money Well"
(W US 21), has been used a lot of times by Don Rosa in his stories :
-"His Majesty, McDuck" (AR
145)
-"The Guardians of the Lost Library" (D
92380)
-"The Invader of Fort Duckburg" (D 93227)
-"The Richest Duck in the World" (D
93488)
-"W.H.A.D.A.L.O.T.T.A.J.A.R.G.O.N." (D
97052)
Here are all the panels in which it appears, except the original one,
which I don't have, unfortunately...