Weird West Quest Seeds:
A cattle rustler
needs
a magical ring from
a root cellar.
A blind man
seeks
a theory proven at
a circle of large stones.
Someone from a PC's past
needs
an alabaster statue from
a nearby winery.
A butcher
desires
the blood of a creature from
a keep.
A native squaw
needs
safe passage through or to
the wastelands.
A doctor
needs
a potion from
a dry riverbed.
A shop owner
needs
a special revolver from
a circle of large stones.
Simple obstacle:
Undead