The Ridge Map

The ridge map is a resource for referencing local knowledge along the Appalachian ridge system. Places known to be tricky, landing sites and relevant notes about the air can be found here. It’s a crowdsourcing tool, wherein anyone can add information. Please avoid deleting or moving items unless you have a specific reason to do so. (The ridge map is backed up every couple months, so if something happens, it won’t disappear.)

Bear in mind, this is not a manual of how to fly the ridge; each day is different! Most of the observations assume that the ridge is working. The landing options may not be landable from season to season. The hotspots on the ridge, areas of enhanced or suppressed air won’t likely work on days when there is little wind, or it’s from the wrong direction. If you’re an inexperienced pilot using this tool to gain local knowledge, please ask for guidance from mentors. (It’s actually a good way to start a conversation!)

Instructions: Click on the top left side of the map and it will open up a menu. There you will find “base layers” with certain kinds of information.

The main layer is “The Ridge”

This is focused on the NW ridge, all the way from Wurtsboro down to Tennessee. It has the most detail in the Blairstown area. Be sure to click on the icons on the map. Most of them have descriptions


    • Orange point- Notable landmark
    • Yellow box- Field in which a glider has landed, or walked
    • Orange box- Possible landing option. Not scouted on the ground.
    • Black box- Place known to be unlandable
    • Orange star- Local hotspot for thermal
    • Other items should be self-explanatory

(Notes: You can change the base map from Satellite to Terrain view on the bottom. Several other base layers can be added on top of the ridge map.)

Unlandable/Caution Zones

    • Orange boxes- Areas in which we fly, but are unlandable or have other issues
    • Black boxes- Don’t go in here low! Unlandable and don’t work either!

Crash sites– Places in which gliders have been damaged or totaled. Notice how a number of them correspond to the Unlandable/Caution zones!

Lift Sink Zones– Areas known to be somewhat enhanced or suppressed.

    • Blue zones are places where it is generally a bit softer, or you’re less likely to find a thermal
    • Red zones are places where you are more likely to find an energy line to make a crossing

Blairstown/Wurtsboro Wave Areas– Wave areas explored in the Catskills and Poconos.

    • Also has landing options in that area. May be useful for thermal flying too.

SE Ridge: The backside ridge has its own separate layer. Not to be used with the other layers due to clutter. There are also several flight logs imported for reference

Flight Logs:

    • Blairstown SE Ridge example
    • Blairstown 750km triangle
    • Ridge Soaring 500km loop

Blairstown Airport: Local knowledge for the airport.