Help on sangchris

Have first tournament of this lake in mid March. Going Down to pre fish day before. Launching at east ramp. Any tips on how to crappie fish the lake or coves to fish. Is there any visible structure? Does the water temp fluctuate alot? Is it a muddy lake? What is best fishing presentation?. Thanks for info

It is an old lake, opened in the late 60's. Obvious structure is shore line lay downs, pad stems and rip rap. It can get very muddy and if the plant is down, very hard to get bit. Good luck.