What lake chip to run in my Hummingbird?

What is the right lake chip I would need for running Gaston and Roanoke Rapids lakes? I have a Helix 10 Mega unit. I've looked online at the Hummingbird Mid Atlantic chip. Is that the right chip and/or best chip for that unit?

I believe Gaston is on there, but Roanoke Rapids may not be mapped. Here is the lake list for the Mid-Atlantic card: https://www.humminbird.com/uploadedF...TLANTIC_r1.pdf

Be sure and check what your different companies offer in their lake cards. Here in Indiana Navionics covers all the lakes I fish. But Lakemaster does not have 3 of our primary lakes that I fish, and why I have no idea but it is what it is.

I have that Lakemaster card, I'll look tomorrow to see if RR lake is on there, I know Gaston and Kerr is.

Thanks. I definitely want all of Gaston if possible. RR lake would be nice.

Gaston is on this chip, shown in 1ft details, RR Lake is not. It looks like a smaller lake, guess you could run Auto Chart Live and make your own detailed lake map. I know you can record 8 hours of maps direct to the unit without having to buy a zero line sd card, looks like that should be more than enough time to map this lake. Let us know how this works out.