Preston Reservoir Fishing near Ione, California

• Overview

  Preston Reservoir is one of the Amador County waters in California. It sits at 348 feet above sea level. It covers about 12 acres, so this is small water you can walk round in under an hour. Ground here is low by California standards. For supplies, Ione is 1.2 miles out. Then Sutter Creek, 7.5 miles, and Jackson, 9 miles. The nearest boundary is well away, so one set of rules covers the water.

• Where to Fish on Preston Reservoir

  There is no recorded depth, so work from what you can see. Levels move with the draw rather than the rain on water like this. Held water runs deepest at the wall and shallows back to the inflow. Amador County records list rainbow trout, brook trout and brown trout among the fish reported. Read it as a county summary, not a water-by-water list. At Preston Reservoir the water rewards a slow, careful approach.

• Seasonal Patterns

  Long-run averages give July about 78°F and December about 46°F. Long warm spells define the calendar more than any cold. October and November give a second good stretch as it cools. Autumn steadies things again once the heat lets go. That is the shape of the year on Preston Reservoir.

• Tackle & Baits

  Our records carry no access rule either way. Recorded parking is half a mile off, far enough to travel light. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. State or provincial rules still apply whatever the bank status. Fishing rules and camping rules are set separately here. Goffinet Reservoir, 3.1 miles away, makes the obvious fallback. Treat access at Preston Reservoir as something to verify.