Benchmarks indicate distance above sea level, in your case it would be 66.53 feet above sea level, unless another measurement ( ie yards or any other measurement) was used.whatever the measurement is in , is the height above sea level in that measurement
A point of reference from which measurements or estimates may be made is often called a benchmark
Benchmark
benchmark fractions mean
a point of reference for a measurement
a point of reference for a measurement
benchmark fractions
By Benchmark it means what is closer for example the benchmark of 24% is 25%.
Benchmark
benchmark number
a good reference point is a very large tree when driving on a road
Is it a typo of "benchmark"?!
baseline basis for comparison; a reference point against which other things canbe evaluated benchmark Standard by which something can be measured or judged: