Some of the main features of Ground Environment X:

• Complete coverage of the USA and Canada (including Alaska).
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  1m/pixel - 1024 x 1024 Texture Size - Hand Crafted To extreme Detail.
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  High Performance, extreme density and perfectly aligned autogen.
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  Realistic custom designed night textures.
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  All seasons including snowy winter.
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  Textures derived from licensed Arial and Satellite imagery.
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  Fine tuned add-ons and ongoing updates and enhancements will be made available through the built-in update feature, based on customer feedback.
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  New Enhanced Version features!
  
  
• Enhanced textures to assist in rendering clearer visuals.
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  Highly detailed crisp and clear arial views.
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  Enhancements to produce simulated 3D depth in texture foliage.
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  New winter textures which display vegitation within the snow.
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  Better season blend so seasons such as fall fade into winter and blend natually.
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  Enhanced color processing which upgrades all seasons.
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  Enriched desert and flatland details, no more bland yellow deserts or flatlands.
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  Structured texture layout to assist in covering all major landclass products.
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  Special features for Ultimate Terrain X USA and Canada Customers.
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  Completely redesigned night lighting environment.
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  This is the first of a planned 3 version series that includes the current USA/Canada version. We are planning a Europe version, and an Oceana/Africa/Australia version, for future release.