Charts and Maps

Navigate Smarter and Find Fish Faster with Marine Charts & Maps

Whether you're running offshore saltwater flats, trolling a sprawling inland reservoir, or threading through unfamiliar coastal inlets, having accurate, detailed charts and maps on board isn't optional — it's essential. Marine charts and fishing maps give boaters and anglers a clear picture of what lies beneath the surface: depth contours, bottom composition, submerged structure, navigation hazards, and prime fish-holding areas. The right chart can mean the difference between a productive day on the water and a frustrating one — or, more importantly, a safe return to the dock.

What Are Marine Charts and Fishing Maps?

Marine charts and fishing maps come in two primary forms: print charts and digital chart cards. Printed maps are durable, portable, and ideal as a backup reference or when exploring an unfamiliar body of water before you launch. Digital chart cards plug directly into compatible fish finders and GPS units, overlaying detailed bathymetric data — depth contours, bottom hardness, structure, and more — right onto your chartplotter display in real time.

Key features to consider when shopping for charts and maps include:

• Coverage area — freshwater lakes and rivers vs. nearshore and offshore coastal waters
• Contour detail — tighter depth contour intervals reveal more bottom structure
• Compatibility — digital cards must match your fish finder or GPS unit's brand and model
• Additional data layers — some charts include GPS coordinates, boat ramps, marinas, tidal information, and points of interest
• Update frequency — more current data means safer navigation and better fish-finding intelligence

Top Brands in Charts & Maps

Fishing Hot Spots has been a go-to resource for freshwater anglers for decades. Each Fishing Hot Spots map is thoroughly researched, the information verified, and cartography done digitally with the most current and accurate GIS tools — resulting in maps that are both easy to read and genuinely useful on the water. These maps include full lake profiles, fishing tips and techniques, and GPS information, developed with assistance from fishing experts such as guides, lake biologists, bait shop owners, and tournament pros.

Humminbird takes the concept of charting to a digital level, offering a suite of chart cards and built-in mapping tools designed exclusively for their fish finder lineup. Humminbird offers a suite of advanced mapping products tailored to both freshwater and saltwater anglers — whether you're fishing inland lakes or navigating coastal waters, there's a mapping solution designed to give you the edge. Their LakeMaster line delivers high-definition freshwater maps with 1-foot depth contours on thousands of lakes across the U.S. and Canada , while their CoastMaster charts are built for saltwater anglers, offering detailed marine charts for the East Coast, West Coast, and Gulf of Mexico, including both nearshore and offshore coverage with features tailored for tidal and current conditions.

Choosing the Right Chart for Your Waters

If you spend most of your time on a specific lake or regional fishery, a detailed printed map or regional digital card from a specialist brand is often the most cost-effective choice. If you run a Humminbird fish finder, pairing it with a purpose-built chart card unlocks powerful features that generic basemaps simply can't match. For boaters who venture across many different bodies of water, broader coverage packages offer the flexibility to explore with confidence wherever the water takes you.