Tortoise Adoption Program
Appendix IV: Burrow Options
Care, Husbandry and Diet of the Desert Tortoise
Using concrete blocks to construct a tortoise burrow:
- After leveling the den site, layout the burrow using 6 concrete blocks (CMU 8"X 8"X16"). Other materials such as slump block or adobe brick can be used as long as you end up with similar dimensions. However, adobe readily crumbles when tortoises dig against them.
- For large adults an extra course of 4" thick block can be used to give more headroom.
- A piece of ¾" outdoor or treated plywood (40" long X 32" wide) should be laid over the blocks (to their outer edges).
- Cover the den with a layer of 6-8" of dirt to provide adequate insulation. Large rocks placed along the outside edge of the blocks can be used to help prevent erosion.
- The final product. The den should be protected from runoff water by creating a small burm at the entrance to direct any water away.