Natural cement mold paths make a great addition to uneven terrain.  These stable cement paths can meander through wooded areas, along slopes and inclines.  Paths can be laid on top of undisturbed earth and do not need to be sanded.  If you are looking for an alternative to the traditional paver or sidewalk, these make an excellent choice. GardenHere, LLC, currently offers two molds 1) natural stone; and 2) rectangular (brick).  Color can be added for extra detail.