Posterior gluteal line

The posterior gluteal line (superior curved line), the shortest of the three gluteal lines, begins at the iliac crest, about 5 cm in front of its posterior extremity; it is at first distinctly marked, but as it passes downward to the upper part of the greater sciatic notch, where it ends, it becomes less distinct, and is often altogether lost.

Posterior gluteal line
Right hip bone. External surface. (Posterior gluteal line is red arch near top, labeled at center left.)
Details
Identifiers
Latin	linea glutaea posterior
TA98	A02.5.01.118
TA2	1334
FMA	16925
Anatomical terms of bone

Behind this line is a narrow semilunar surface, the upper part of which is rough and gives origin to a portion of the Gluteus maximus; the lower part is smooth and has no muscular fibers attached to it.

References

This article incorporates text in the public domain from page 232 of the 20th edition of Gray's Anatomy (1918)