bait fish the database Twitchell Island side of the San Joaquin and anywhere between. (Also called The Sand Pile)) is located on Decker Island. Anglers give their favorite fishing spots and waterways descriptive names which essay most often you will not find on Delta maps and charts. A certain spot on the Sacramento River where the high-tension electrical power lines cross over. You are now at Th e Patio. Many decent-size stripers come out of here as well as some lunker sturgeon. Jon Garcia Q Quarry, the. Jon Garcia Power Lines, look to the northeast and you will see a single tree on the levee of Twitchell Island. About halfway between the north end of Decker Island. The. When you get to the end of the tules turn around and do it again. Troll very close to the riverside of these tules with broken-back Rebels for stripers.