Perkiomen, the

The Perkiomen Creek is a small river in Pennsylvania, flowing into Philadelphia. The creek runs along the southern border of Bucks County, where Stevens's father and many of his paternal ancestors had their origin. The creek is mentioned in the poem "Thinking of a Relation Between the Images of Metaphors."
The name may come from the Lenape term Pakihm Unk (pronounced for Pah Keym Unk), which means "cranberry place" in English.
==Famous for its bass. . . ==
Part of the theme of “Thinking of a Relation Between the Images of Metaphors” is, according J. Hillis Miller, how “a series of authentic metaphors is a way of moving toward a goal which cannot be attained directly” (243). Describing the oneness of the scene, Stevens writes in the poem:
There is one dove, one bass, one fisherman.
Yet coo becomes rou-coo, rou-coo. How close 
To the unstated them each variation comes . . . 
The first line in poem mentions the creek: "The wood-doves are singing along the Perkiomen. / The bass lie deep, still afraid of the Indians."
Miller, J. Hillis. The Poets of Reality. 1965.