We're installing our first natural stone retaining walls next week. The material is field stone steppers (about 40-50lbs each, 7-10'' tall and 12-18'' deep), which are natural faced, but pretty flat on top. I'm open to advice and opinions. We are doing a total length of about 70' by 2' tall built on a 6'' deep by 2' wide crush and 1'' m-10 sand base. I plan to use type s mortar behind the stones for stability. I do not plan on using drainage as they are short walls. I appreciate any advice and suggestions. I'll post pictures as we progress on Monday and Tuesday.