Garmin GPSMAP-66S user manual

Yes, the Garmin GPSMAP 66s comes with preloaded worldwide basemap. However, it does not have detailed topographic or street maps included by default. These maps can be purchased separately and added to the device for more specific and detailed navigation.

As of now, there has been no official announcement regarding a direct replacement for the Garmin GPSMAP 66st. The GPSMAP 66st is still considered one of Garmin's flagship handheld GPS devices and is widely used and appreciated by outdoor enthusiasts. However, Garmin regularly updates and releases new models, so it is possible that a successor to the GPSMAP 66st may be introduced in the future.

To install maps on your Garmin GPSMAP 66s, follow these steps:
1. Download and install Garmin BaseCamp software on your computer if you don't already have it. It can be downloaded for free from the Garmin website.
2. Connect your GPSMAP 66s to your computer using a USB cable.
3. Open Garmin BaseCamp on your computer and select your device from the list of connected devices.
4. In the menu bar, go to Maps > Install Maps. This will open the MapInstall window.
5. In the MapInstall window, click on the "Select" button to browse and select the maps you want to install on your device. You can choose from Garmin TOPO maps, City Navigator maps, or any other compatible maps.
6. Once you've selected the maps, click on the "Install" button. BaseCamp will install the selected maps onto your GPSMAP 66s.
7. Once the installation is complete, disconnect your GPSMAP 66s from the computer.
Your newly installed maps should now be available on your Garmin GPSMAP 66s.

The Garmin GPSMAP 66s and 66ST are both handheld GPS devices from the same Garmin series, but they have a few key differences:
1. Topographic Maps: The main distinction between the two models is that the Garmin GPSMAP 66ST comes preloaded with topographic maps, while the 66s does not. These maps provide more detailed terrain information, such as contour lines, elevation data, and points of interest.
2. Basemap: In terms of basemaps, the 66s has a built-in worldwide basemap, which includes major roads, rivers, lakes, and general land features. On the other hand, the 66ST includes not only the built-in basemap but also the preloaded topographic maps for better navigation and outdoor exploration.
3. Price: Due to the inclusion of preloaded topographic maps, the Garmin GPSMAP 66ST is generally more expensive than the 66s.
Aside from these differences, both models share similar features and capabilities including GPS/GLONASS/GALILEO satellite reception, multi-GNSS support, wireless connectivity, weather updates, and more. Overall, the choice between the Garmin GPSMAP 66s and 66ST depends on whether you require the added benefit of preloaded topographic maps for your outdoor activities.