Hey Tpaboy, I have lived in the Tampa Bay area all my life. I personally have been collecting Indian artifacts since I was about 10 years old and I will be the first to tell you there are many artifacts on your property its just a matter of knowing where and how to look. The Indians used the Hillsborough river as a means of travel and ambush hunting for thousands of years which equals lots of artifacts waiting to be discovered by you! There is nothing like pulling a big Newnan, Marion, or many other various types of projectile points and artifacts of Florida out of the ground that was used by the real pioneers of our country! So, how to find them you ask? DIG, DIG, and DIG some more. Start with little test holes through out your property digging down to what is called the hard pan ( a hard black layer of dirt) looking for flakes or chips of materials usually coral or chert that are from knapping. When you start to find those you are in it! Keep digging methodically and take your time, its a lot of work but worth it when you find a "SCREAMER". And just a last note, fill back in your holes and mark them so you know where you have dug already. If you ever want to hook up and do some artifact/relic/coin hunting let me know I would be more than willing to have the company. Good Luck, Ben