Walleye
Nobody stocks these walleye — Fish ON-Line shows no record for the reservoir — so every fish in the drowned Conestogo River channel got there on its own, spawned on the gravel and current at the arm heads. That timing matters: the season closes mid-March and doesn't reopen until the second Saturday of May, a shut window that sits right on top of the spawn. When it reopens, the channel is where the search starts.
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Start with the water column. Conestogo's main basin stratifies in summer — the dam releases cold water off the bottom, which tells you a cool layer is down there — and the walleye use it, holding the drowned channel and deep basin through the bright hours.
Low light flips the pattern onto the main-basin points, where the perch that fill the reservoir's weed edges become the menu. The stain helps too: walleye feed comfortably in the coloured water the arms send down-lake.
Spring is an inflow story — current and gravel at the heads of both arms draw the spawners up before the season reopens in May — and by early summer the deep-basin game is on. A winter window runs January 1 to March 15, but the drawdown that moves summer fish also makes the ice untrustworthy, and no documented ice access exists.
Structure
The deep, stained water along the old riverbed toward the dam is the daytime holding zone; the inflows at the top of each arm supply the current and gravel walleye need to spawn in early spring.
Points along the main-lake basin fish well in low light — the transition water walleye move onto when the sun is off the lake.
Regulations
This is a summary, not the legal regulation — confirm current rules with the official source before fishing.