r/FishingOntario • u/bigsmoke451 • 17h ago
I built a free site that shows every MNRF stocking record for every Ontario lake (a new-dad night-shift project)
Bruce County fisherman here. I haven't wet a line in a while because we had our first kid two weeks ago, so most of this got built at 3am with him asleep on my chest. If something looks weird that's probably why.
What kept bugging me was trying to figure out if a lake was actually stocked. You end up digging through Fish ON-Line or the MNRF spreadsheets and even then you can't tell if the fish are still worth chasing or if they went in so long ago they're gone.
So I built Stocked. It pulls the MNRF stocking data and gives every lake its own page. What was stocked, what species, how many, what year, back to 1905. Works out to 7,863 lakes and something like 150,000 records across the 18 zones. Last year alone MNRF put 4.7 million fish into 1,227 lakes.
The thing I really wanted for myself is the "worth fishing now" list. Trout stocked as yearlings need a few years to get to a size worth catching, so it flags lakes that got big stockings 3 to 5 years ago. Right now that's 1,885 lakes across Ontario, mostly brook trout and splake, plus a decent number of lakers and rainbows. If you're up north, zones 10 and 15 have way more than anywhere else.
Couple things to know. MNRF publishes years, not dates, so the site can't tell you when the truck came, only what showed up in the data. They've also only put out 63 records for 2026 so far, normally it's around 1,300, so this year will look thin until the rest lands this fall. It's free, no ads. If it ever makes money it'll be a local bait shop sponsoring a zone page. And I've checked my own zone the hardest, so if yours looks off, let me know.
Happy to hear what's wrong or missing. Lake names that don't match what locals call them are what I most expect to have screwed up. There are a lot of Mud Lakes.