I describe courtship and mating of the plethodontid salamander Plethodon petraeus (Pigeon Mountain Salamander), which is a member of the P. glutinosus group (PGG) of eastern species of Plethodon (EP). Individuals exhibit adaptions for enhanced climbing ability and inhabit moist crevices of rock outcrops and cave openings within a very limited range in northwestern Georgia (USA). Courtship involves a unique blend of behaviors known for species in the PGG, P. cinereus group (PCG), and P. welleri group (PWG) of EP. Compared to most species in the PGG, there are notable differences during both the tail-straddling walk (TSW) and the period that precedes the TSW (‘pre-TSW phase’). Males exhibit both ‘foot dance’ and ‘foot shuffle.’ Frequent, high-amplitude mental-gland ‘popping’ by males during mental-gland sliding may be due to more-adhesive skin or mental-gland secretions. Olfactory delivery of pheromones is absent or rare because mental-gland contact to the female’s nares is absent or very infrequent during the pre-TSW phase and absent (or rare) during the TSW. Two forms of the duet behavior ‘female-first tail-straddling walk’ (ffTSW) occur during the pre-TSW phase: a discontinuous form during most courtships and a continuous form during some courtships. Infrequent ‘mouth grasping’ by males may be a facultative behavior that promotes transdermal pheromone delivery to less-receptive females. Very similar to some species in the PCG and PWG, the female initiates contact leading to the TSW in most courtships via turning back during ffTSW. If mating occurs within the protection of rock crevices, then reduced predation pressure or mate competition may have permitted the evolution of the relatively prolonged courtship (mean about 5 h). Results indicate that the detailed study of additional species will help refine current ideas about the evolution of courtship behavior in EP and perhaps other plethodontid clades.