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
The word you are looking for is "benchmark." A benchmark is a standard or point of reference against which things can be compared or assessed.
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
A reference point is a specific, fixed location used for comparison or measurement. It serves as a standard or benchmark against which other things can be evaluated or measured. It helps provide context and perspective in various situations.