You mentioned you have a 6 foot change in elevation, but it makes a big difference as to how long of a distance that is.
How To Put Up A Retaining Wall On A Hill. How to build a retaining wall. Retaining walls often are used to manage steep slopes in a landscape.
How to Build a Boulder Retaining Wall | how-tos | DIY from diy.sndimg.com
I've read that there are depths you don't go to when doing this for a new how far down do i dig, weed barrier, etc. The process of making sure that a retaining wall drains properly is relatively simple, but it is not very flexible. They not only prevent erosion, but also we built a retaining wall on the slope behind our house to give us more usable space, and it opened up our backyard and gave us a lot more room.
Thus, the thought to build a railroad tie retaining wall comes in.
I've read that there are depths you don't go to when doing this for a new how far down do i dig, weed barrier, etc. We don't really want to put in a retaining wall because we fear it would be too massive and not give the house. Installing the wall is labor if the hill is taller than 4 feet, plan to build multiple retaining walls up the hill to create a tiered look. We are planning to put up a privacy fence on our lot.