Updated Feature: Improved Map Layers UI and the New Layer Catalog
This week, the Map Layers menu got a much needed overhaul! We also added a new feature to both the web and mobile app: a Layer Catalog. You’ll probably notice the difference right away as it’s a whole new look, but there is also a lot of new functionality we hope you will enjoy!
But don’t take our word for it- move the slider on the image below to compare the old Map Layers menu (on the left) with the new version (on the right).


So what has changed?
The biggest functional change is the addition of the new Layer Catalog. The layer catalog allows you to choose which layers and overlays are always visible in the right hand layer menu when you are in the map viewer.

This could be useful in a myriad of different ways. For instance, I don’t need to see the avalanche/winter specific layers while I’m on a backpacking trip in the heat of the summer months. The layer catalog allows me to hide those until I need to see the forecast/avy observations layer as winter gets started where I live.
Why is this awesome?
While many of our layers are available globally, there are a few that are location dependent. Some users have expressed the desire to hide layers that aren’t available in their location, in order to slim down the layer menu. Additionally, educators teaching new CalTopo users how to navigate may find that the extensive layer list can be overwhelming as they get started. Now you can slim down the layer menu to show only what you will use in the near future and to simplify the look of the interface.
The CalTopo team is really excited as adding the layer catalog also gives us the ability to add additional layers in the future, without overwhelming the layer menu. Keep in mind, if you like and use all the layers, you don’t have to hide any of them!
Regardless of why, you can now choose to hide layers from your view. You can always adjust (or re-adjust) this for the season, map or activity on the fly if you previously hid a layer that you now want to use, on both web and mobile.
How to use the new Layer Catalog

To open the layer catalog you will select the “settings” cog in the upper right corner of the layer menu. This opens the catalog page, and from here tapping on any layer will enable/disable that layer’s visibility on the menu in the map viewer. A green “eye” icon indicates that a map layer is enabled on the layer menu. While a red “eye” icon with a slash through it indicates it is disabled. Click anywhere on that layer to change visibility.
Once in the catalog, you may notice that there are a few colored description tags on many of the layers. These highlight some features that may be helpful in determining which layer is a best fit at a high level glance. To dig in deeper you will want to select “more info” to expand a more detailed text description of the layer. If you ever need more information on a layer you can also find details in the user guide here: Base Layers and Overlays.
What else has changed?
Other updates to the Map Layers menu include thumbnails showing a quick glance of what each layer and overlay look like, as well as some reorganization of the order in which layers and overlays appear. You will immediately see the new layer menu and catalog on the web. If you don’t see it on your app make sure that you are on the most recent version, which is 1.24.1.
You can find more information on using the layer catalog and new UI in the CalTopo user guide here: Layer UI. If you have feedback or questions on this please leave a comment below on this blog, or email us at help@caltopo.com.
Happy Mapping!





























