How to find Lake depths

Hey guys, im struggling to find a site that would provide the depths of certain lakes. Im looking for the topographical map for Lake Maspenock in Hopkinton,MA...any idea

Basically it is for Ice fishing, i feel like i've been a bit shallow and figured if i found a map of the lake and its depths, it would be alot better off

Thanks!

Try here.

Not much detail, but it should get you on the right track. I believe Lake Maspenock is also called North Pond...

Good luck!