free nav map downloads for gps
 

are there free nav map downloads for gps?

I realize you wont get as much detail or true accuracy for free, but im not wanting to spend $100+ on a map card so there must be free versions out there that are much better then the generic "basic" maps that come with the gps units?

anybody know where something can be found to download "basic" bathymetric data maps

Navionics app is good.

scott and alphaman has something better Than all that id say. real time navigation data! Attachment 93711 check out the cove an south west pass.

Attachment 93712

well I am totally clueless about how this stuff works so do I just download something onto a data card and plug it into the depth finder?

@ redaddiction - is the navionics app free and where can I find it?

@ alphaman - is the real time navigation an app? and if so where can I find it? or is what you are talking about just data you personally recorded yourself over time on the water?

personal recording along with other people who helping out.

1.log sonar while fishing.
2 upload to a program create the map
3 download to sd card place on gps.
we update the maps each time we get a sonar file from the ones who are recording or from our own trips

Alphaman, does a fella named Scott Toups help you out with this? If so ive seen yall work for a brief minute and I have to say it is very impressive. Nice work...

It's scott talbot wishiwasfishing. he's the one who started the mapping. he taught me the ropes and assist him.

Yep Scott Toups helps us out when he is not working or chasing tail...

Cool I though he was asking about you scott. but got last names mixed up. lol but Toups is helping out as well

Ha. I gotta tell yall that yall do a fine job...

I thought the "REEF" chip was the real deal till I got a glance at his over lay. I think we offered him everything but some tail for a copy. but he didn't bite. Yall could make a killing with the work yall have done.

It not just myself and scott. We have a group of people helping out here in vbay and a group in big lake with the mapping.

Yeah he told me y'all have a group of people working on this. it must take a few fellas to gather that much info.