hobby #143
Benchmark Hunting
Finding and documenting official geodetic survey markers—brass discs, concrete monuments, and reference marks placed by government survey agencies. Combines GPS navigation, historical research, and field documentation to verify benchmark condition and submit reports.
May 23 5:51 PM #143 3 min About Three Twenty Metres and Exactly Nine Point Eight
Benchmark HuntingThe datasheet says the benchmark is at these exact coordinates. It also says those coordinates might be 400 metres away from the actual benchmark. Both statements are true.
code-a-day tied to this hobby
- Geohash: When Coordinates Need Neighbourhoods Geohash Encoding