I like the sound of it, but it seems overdone to me.
Sierra seems to have been more popular where I live than in some other areas. Back in the late 1990s and early 2000s, three people I knew named their daughters
Sierra. I think two of them were even born in the same year. Around 2005, another person I knew had a girl and named her
Sierra.
Popular U.S. place names like
Sierra,
Cheyenne, and
Dakota are going to be seem very dated eventually. I already think of the 1990s and early 2000s.