Newcastle Reservoir is a reservoir in Utah, near Iron County.
Stocking records show that the following fish or strains were stocked here. A historical stocking does not by itself prove that a self-sustaining population remains today.
Newcastle Reservoir is a reservoir in Iron County, Utah and covers about 151.5 acres, reaches about 75 feet at its deepest point and holds roughly 5,200 acre-feet.
Newcastle Reservoir is compact enough to fish slowly, but a change in weeds or bottom can still split it into separate patterns. Deep water at Newcastle Reservoir gives fish room to move away from shore as summer heat and bright light build.
Fish listed for Newcastle Reservoir include Bluegill, Common Carp, Green Sunfish, Smallmouth Bass, Rainbow Trout, Utah Chub, and Utah Sucker.
At Newcastle Reservoir, try this for bluegill: use a small jig, worm, or tiny plastic around green weeds and protected pockets.
At Newcastle Reservoir, try this for smallmouth bass: drag a tube or Ned rig across rock and the hard edge of a point.
At Newcastle Reservoir, try this for rainbow trout: cast a small spoon, inline spinner, light jig, or fly through cool water.
At Newcastle Reservoir, try this for common carp: place corn or a dough bait on the bottom along a shallow flat.
Black Crappie, Brown Trout, Channel Catfish, Cutthroat Trout, Tiger Trout, and Wiper have also been stocked here; that proves fish were released, but it does not promise that they are still common or easy to catch.
At Newcastle Reservoir, use wind as a clue; a light push can carry food toward a bank, but hard wind may muddy it, so look for a clean edge near a point or protected pocket.
Early in the year, protected water and the first warm afternoon can be the best clues; as the water heats up, check deeper edges without assuming every fish is on the bottom; cooling fall water often makes points and firm banks useful again; cast across the point tip, then slow down after the first bite.
A light spinning rod, thin line, a few small spoons, inline spinners, and jigs cover the listed trout; carry one slightly heavier setup when other fish or windy water call for more control; try deeper shade during summer afternoons, then write down the productive depth.
At Newcastle Reservoir, record the wind, water color, productive depth, and cover after a bite; those four notes are more useful on the next trip than a long list of spots that did not produce.
Use a small jig, worm, or tiny plastic around green weeds and protected pockets; give low-light water a slower bottom pass.
Treat 75 feet as the deepest point, not the automatic fishing depth; start near cover and move deeper only when bites or bait give a reason.
It confirms that black crappie were released, but it does not prove that fish are now common or easy to catch; compare shallow and deeper water.
Explore nearby waters, including local Featured destinations. Check each page for access and fishing restrictions.
Distances are straight-line estimates between mapped water locations.