Heres my Tortoise Pen half done...
first i made the base
http://www.leo-land.net/albums/album..._001.sized.jpg
dug holes for the posts
http://www.leo-land.net/albums/album..._002.sized.jpg
just another shot of the base in the ground...making the walls today
http://www.leo-land.net/albums/album..._003.sized.jpg
will post updated pics later on maybe.
there will be about a 2ft wall..with chicken wire on the top..i am making a tunnel of wood underground for them to go to another INDOOR enclosure for the winter..this will be about 2ft underground(lots of digging)