Hi, I've found the attached lisp that label contours. the problem is that it for PLINE (x,y and Elevation) I need help with changing it to work with 3DPOLYLINE (x,y,z), and the use the Z value of the first vertex of every contour line as the contour line level value. (actually, we can use any vertex of the contour line for the elevation value... I just thought it will be easier to use the first...) Thanks, Ari. Label_Side_Elevation.LSP