Quote from: JavaJones on February 11, 2017, 08:49:06 pm
Terrain Party's data comes primarily from the USGS, so there's no way it's better than USGS. ;) There are multiple data types/sources/output formats at the USGS, it can be a little confusing to understand at first. Just go for the lowest "arc minute/second" data or, alternatively, the smallest meter spacing (e.g. 10m, 3m, etc.).
Quote from: JavaJones on February 11, 2017, 04:50:47 pm
A good DEM should appear potentially low detail, but still smooth. This looks more like the effects of a subpar format (such as an 8 bit image format) used to store the data. What is the source of this DEM? If you got it from something like "Terrain Party" throw it away, that site is not great. The USGS offers worldwide (and especially US) DEM data freely in high resolution and multiple formats. I'm not sure which World Machine supports, but hopefully it can handle GeoTIFF (32 bit TIFF).