She's in her dotage.
Thirsting for
The hierarchic privacy
Of Queen Victoria's century,
She buys up all
The eyesores facing her shore,
And lets them fall.
The season's ill—
We've lost our summer millionaire,
Who seemed to leap from an L. L. Bean
Catalogue. His nine-knot yawl
Was auctioned off to lobstermen.
A red fox stain covers Blue Hill.
And now our fairy
Decorator brightens his shop for fall;
His fishnet's filled with orange cork,
Blue Hill is a town in Maine. “Red fox stain” is a reference to foxes' urine, which smells like skunk spray. 
 Robert Lowell is suggesting Blue Hill is contaminated; or perhaps this is another reference to the economy.
Skunk Hour