Batrachoseps campi is one of the largest slender salamanders, a genus otherwise mainly made up of very small species, and can grow to over 6 cm in length.

[2] The Inyo Mountains are extremely dry, especially at low elevations, resulting in Batrachoseps campi being largely restricted to small permanent springs inside steep canyons on both sides of the range.

However, pitfall traps have recorded individuals far from these water sources, indicating that the species' underground distribution may occupy significantly more of the mountain range.

However, the springs it occupies are effectively completely isolated from each other due to the vast expanses of extremely dry desert mountain terrain separating them, and as such some subpopulations show significant genetic deviation from salamanders in other localities.

[4] It is genetically most closely related to Batrachoseps robustus (Kern Plateau slender salamander), a species found across the Owens Valley on the Kern Plateau i the Sierra Nevada, and Batrachoseps wrighti (Oregon slender salamander), a species found in northern Oregon.