Grand Lake St. Marys, OH Fishing Map - Southwest Ohio
Lake Info & State Management
Grand Lake St. Marys is located in Mercer and Auglaize Counties flanked by the cities of Celina to the northwest and St. Marys to the northeast. The entire lake is bounded by state roads – State Route 29 is on the north side ~ State Route 703 is to the south ~ US Route 127 to the west. It is just west of I-75 off of US Route 33.
Approximately 90 miles southwest of Toledo. Approximately 90 miles northwest of Columbus. Approximately 60 miles north of Dayton.
This big lake has good populations of; *Bluegill *Bullheads *Largemouth Bass *Black and White Crappies *Channel Catfish *Bullheads *Yellow Perch *plus an occasional *Northern Pike or *Striped Bass.
There are many marinas around Grand Lake St. Marys. There are boat rentals at many of these so select one that is near the spots that you want to fish. There is no horsepower limit on the lake – but beware! The lake is very shallow with an average depth of only 5-7 feet. There are many stump fields with appetites for boat motors. A No Wake Zone extends 500 feet from shore.
The Ohio Division of Wildlife activities include; monitoring fish populations ~ stocking ~ creel studies ~ vegetation control ~ physical and chemical water analysis.
Grand Lake St. Mary's - Google Maps
Celina, OH Weather ~ 45822
Ohio Adventures (Lakes to Fish!)
Winter Pool Bass Fishing
Many Ohio lakes have been drawn down to winter pool, leaving dry & exposed the normal shallow water areas bass hang out in. So, where do bass hang out until the lake fills
Lake Erie Walleye Fall Brawl Winners Announced!
The top three places of the 2025 Lake Erie Walleye Fall Brawl have been verified and announced. Congratulations to Jay Gullet, winner of a 2026 Ranger 622 FS! He weighed an 11.59#, 29.5″ walleye November 20th. Some wild weather
GoFishOhio Fishing Polls….
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Turn In a Poacher (1-800-POACHER)
Ohio’s Turn In a Poacher -“TIP” program – helps to curtail poaching throughout the state by involving the public in reporting wildlife violations. If you observe a wildlife violation, click here and submit the form online or print the form and mail to:
TIP Headquarters, Division of Wildlife
2045 Morse Rd., Bldg G | Columbus, Ohio 43229-6693
Or call the TIP toll-free hotline, 1-800-POACHER.
Ohio Lake Maps by ODNR Region 1-5
