Grandr_14.zip

While there are a few possibilities, this file is most commonly linked to research regarding or automated mapping using the Grand Rapids urban dataset. Most Likely Source

If this is not related to remote sensing, it could refer to: GrandR_14.zip

"A Global-Local Self-Adaptive Network for Road Extraction from Remote Sensing Images" (or similar titles involving the Grand Rapids benchmark). While there are a few possibilities, this file