By Dillon Luera · Updated
In Arizona, elevation matters more than the calendar when it comes to trout. The Arizona Game and Fish Department (AZGFD) says almost all trout harvested in the state come from its hatcheries, which stock more than 3 million fish a year into 118 locations. Those fish follow cold water. Desert city lakes get trout in winter, while the Mogollon Rim, White Mountains and Flagstaff lakes are stocked from spring into early fall. This guide covers how the three official schedules work, how to read a week-of date, and what can push a planned stocking off schedule.
AZGFD publishes trout stocking as three separate calendars. The winter schedule covers statewide waters during the cool months. The spring and summer schedule covers higher-elevation lakes and streams as they warm up. The Community Fishing Program schedule covers the 50-plus city park lakes and ponds and lists catfish, sunfish and trout on the same sheet. On the 2025-26 calendars, the winter sheet ran from October through March, and the spring and summer sheet picked up in March and ran into early September.
All three are supplied by five cold-water hatcheries: Page Springs, Canyon Creek, Tonto Creek, Silver Creek and Sterling Springs. Page Springs, near Cornville, is the largest and produces about 750,000 fish a year, roughly 57 percent of the state's stocked trout. Canyon Creek sends about 90 percent of its production to the White Mountains. AZGFD says most hatcheries stock specific areas of the state, so a problem at one facility can show up across a whole region's calendar.
AZGFD says the dates on its trout schedule are the Monday of the week the stocking will happen, and the truck can arrive on any day that week. Community Fishing Program plants happen randomly from Monday through Saturday of the listed week. A date of Monday the 7th doesn't mean fish went in on the 7th. It means they are due sometime between the 7th and the 12th or 13th.
The department calls these schedules tentative and subject to change for weather or site conditions. For community waters, AZGFD says the calendar changes only when there are fish delivery problems or a lake isn't suitable for stocking. Treat every listed date as a planning window, not an appointment.
In the low desert, trout are a winter fish. AZGFD's Community Fishing page lists rainbow trout of 10 to 13 inches as a winter stocking, with channel catfish in spring and fall. In its November 2025 report, the department said trout would return to community waters in Phoenix, Tucson, Gila Bend, Yuma and Safford starting in December. Higher-elevation community waters in Payson, Prescott Valley, Show Low and St. Johns had already started getting trout in October. AZGFD does no community stocking at all between June 25 and September 15 because of summer heat.
The Rim country runs on the opposite clock. The Forest Service describes Willow Springs Lake, at 7,600 feet, as stocked regularly from spring through fall. AZGFD reported that the last plants of 2025 at Woods Canyon and Willow Springs came in September. Mid-elevation waters overlap both seasons. Goldwater and Lynx lakes near Prescott appear on both the winter and spring calendars, and the Lower Salt River east of Mesa was scheduled for trout almost every week from October through March. AZGFD notes that trout do best in cool, clean water below 68 degrees, which is why the stocking map shifts uphill as summer comes on.
Access is the first limit. The concessionaire at Woods Canyon Lake notes that Forest Service roads into the lake close in winter and usually reopen in April after the snow melts, so no truck reaches the lake until then.
Water conditions are the second. In late 2025, AZGFD said Russel Tank near Williams would not be stocked because of low water and poor water quality. Becker and Luna lakes in the White Mountains had fish kills during the summer from low levels and bad water. Both were restocked only after cool October weather improved conditions, and Luna received about 45,000 trout, including 5,500 catchable Gila trout. Knoll Lake was left fishless after the department removed illegally stocked green sunfish, with a restock planned for spring 2026.
Some changes add fish. AZGFD stocked Payson's Green Valley Lakes with Gila trout in November 2025, a plant three times larger than a normal rainbow stocking. The Mogollon Sporting Association paid for an extra fall stocking of tiger trout at Willow Springs.
Most catchable trout in Arizona are managed as put-and-take fish. In AZGFD's sport fish stocking program assessment, that means trout stocked at catchable size, usually 9.5 inches or longer, with a short time between release and harvest, typically a few days to four weeks. AZGFD field reports regularly say the best chance at stocked trout is the first few days after a plant.
Warm water shortens that window. AZGFD advises trout anglers to fish elsewhere when water is above 67 degrees. If you do fish stocked trout in water that warm, the department suggests planning to keep the first four you catch rather than releasing stressed fish. Cold water works the other way. In late November 2025, after the fall stockings there had ended, AZGFD reported holdover rainbow and Gila trout still in East Verde River stocking pools. It also noted that Rim lake trout move into the shallows to cruise the shoreline once the water cools.
Start by figuring out which of the three calendars covers your water. A Phoenix park pond will be on the community sheet, and a Rim lake or stream will be on the winter or spring and summer sheet. Find the week listed for your lake. Since the plant can happen on any day that week, a trip late in the week or the following weekend is more likely to come after the truck than a Monday morning visit. AZGFD's fishing reports list recent stockings by week and region, so check the latest report to confirm the fish actually went in.
Before a high-country trip, check the national forest for road and campground status. AZGFD notes that many campgrounds close in fall. Pick a nearby backup water in case your first choice is crowded or was skipped. Finally, check the limit. The statewide limit is 4 trout a day, community lakes allow 4, and community ponds allow 2.
Yes, but only at elevation. Rim lakes such as Woods Canyon and Willow Springs, White Mountain streams and Flagstaff-area lakes are on the spring and summer schedule, which ran into early September in 2026. Community lakes and ponds get no stockings of any kind between June 25 and September 15.
In winter. AZGFD lists rainbow trout as a winter stocking for community waters, and in its November 2025 report it said trout would return to Phoenix, Tucson, Gila Bend, Yuma and Safford community waters starting in December. Payson, Prescott Valley, Show Low and St. Johns community waters start earlier, in October.
Not necessarily. The date is the Monday of the stocking week, and the fish can arrive on any day that week. Community waters are stocked randomly Monday through Saturday. AZGFD's weekly fishing report lists which waters were actually stocked.
AZGFD says trout it produces and stocks are well below the state standard for mercury based on U.S. Environmental Protection Agency testing, and there are no restrictions on how many meals you can eat. Some individual lakes have advisories for other species, so check the advisory list for the water you fish.
Dates are AZGFD stocking weeks, not guaranteed plant days. How this data is sourced