I'm interested in the attributes of this military corridor near Geneva since I plan to fly through that area soon.
Which one are we talking about? The only one I can see which might fit the bill is R45. My Jeppesen (last year's) says it goes up to 2700AGL with a base of 800, dropping to ground level in some sections.
My IGN (this year's) says 800'AGL +, which the legend defines as meaning "to above 5,000' or 2,000' ASFC". It doesn't seem to indicate that parts of the area go down to the surface, but I may be missing some subtlety on the chart here.
My Aviasport 1:1,000,000 chart (last year's) shows it as 800 to 2,600', again with sections which go down to ground level.
So, apart from the slight disagreement between charts about the upper limit, it seems straightforward enough to go over it at the appropriate VFR level which gives at least 2,700' clearance above the surface.
Are we talking about the same corridor, or is there a more restrictive one lurking there?