Could this be a snow-line on Mars?
A relatively low latitude snow line?
from:
http://ida.wr.usgs.gov/html/m15005/m1500546.html
Cheers, BRFelix
A relatively low latitude snow line?
from:
http://ida.wr.usgs.gov/html/m15005/m1500546.html
Cheers, BRFelix