For those that have G.P.S. the co-ordinance is 
N 29°44.106'
W 096° 36.259'

For the rest of us:

Gunsmoke is located North West of Columbus, TX, off of  Hwy 71 on FM 1890. 

Coming from Houston on I-10 take, just past Columbus, exit  #695 or Hwy 71 West interchange to La Grange & Austin.  Go approximately 4 miles just past the Citgo Country Store and Gas station on the left.  Turn left on FM 1890.  Go about 1/2 mile, cross a small bridge.  Turn in first cattle guard on the left.  There will be a Gunsmoke sign on the fence. 

Coming from Austin on Hwy71 going South as you get closer to Columbus you will see the Columbus turn signs on the horizon over the road.  Watch for FM 1890 that turns off to the right.  Turn right on FM 1890. Go about 1/2 mile, cross a small bridge.  Turn left at first cattle guard.  On the fence there will be a Gunsmoke sign on one side and Home of THSS on the other side of cattle guard. 

Remember the weather varies in Texas,  so you might want to check the weather to see what to bring.  Remember in hot weather to drink a lot of  water before and during the shoot.