Maps Matter
A good set of topo maps and aerial photos are a necessary part of every habitat development program. They help you identify boundaries and understand the topography of your property or any other property you may have an interest in.
The problem with topo maps is you never seem to be able to find the right map you need or worse, you have to buy multiple maps to cover the area you are interested in (seems like the most interesting places are always found on the edges of topo quadrangles).
Please Visit MYTOPO.COM for the ultimate source in topography.