Some Thoughts on Phantom Fords

Many OSM validators will report an error if a waterway crosses a highway without some additional tags or structure at the intersection, such as a b...

The State of GNIS Imports into OSM

This diary entry is also available as a personal page on the OSM wiki. Some History of GNIS Imports GNIS is a database developed by USGS that con...

A Glossary of Tags for Landforms

In the course of working with GNIS data from the US Geological Survey, I’ve sometimes been frustrated with the limited range of expression in OSM t...

How to Build a Personal Overpass Server on a Tiny Budget

The GNIS matching project I’ve been working on uses a lot of Overpass queries to find things in OSM. At some point during the project, I needed a f...