Hey Guys! I went back to my first dig site that I started last Saturday and dug down to 3ft but could not find a trace of any more shell,bone,or even any flint so I moved to the West about 100yds.dug down to about 8in. and started finding a bunch of shell so then i started to dig outward and i found some broken pottery an edwards point and what seems to be 1/2 of a friday.but they look like they might be discarded points. So do you think I am still in a midden because there was no bone or burnt rock in the 5x5 area i looked in.And another?are all the places i find surface points going to be good places to dig?i am new to this digging 4 points so any suggestions will help me thanks, Jayrad

Well, one thing is certain, you are near an encampment. How high above the river are you, OR could the area your looking in be low enough to be effected by flood stage of the river? You objectively need to find an area with alot of burnt rock in it where the cooked, as once you have the actual encampment should be very close by. Such areas often are situated where they offer some degree of protection from the North winds. Some of the sites I have visited on the Guadalupe river were rock shelters just above the max flood levels.

I am about 30 ft. above the actual water level right now and the only time that the river ever got that high was in 1998

BROKEN POTTERY ? The very next pottery shard I find will be the FIRST one ! I count pottery very rare around typical CenTex fire rock middens.
Some Potteryite might be able to put an age on your find.
I defer to any of Mike's observations, just cant resist little "comments". No bone or firerock around "discarded" pieces is good. Away from the food preparing area, and you wouldn't be knapping with pork chop greasy fingers ! There sometimes seem to be areas with lots of mainly broken bases, it might have been under a nice shady Pecan tree, good for socialising and mounting new projectiles, chucking the brokes.