Franse Schans

It's very warm and dry in the Netherlands now, and in the news in the past days were drone images showing very interesting archeological sites.

It was reported that the French Sconce was visible near Groenlo (or Grolle to the most of you), but it turned out to be that already in 2003 this Sconce was visible from the air. The fortress is from the 1620's and yes there's also an English Sconce near Grolle.

More info on the fortress line around Grolle here