How to download SRTM3 elevation data to locusmap Pro for USGS maps
I am a long time user of Locusmap Pro.
I have downloaded USGS map for washington state in USA, and would like to make sure I have the most accurate altitude data offline - useful for creating our own routes while alpine scrambling or snowshoeing.
1: I understand SRTM3 is more accurate than SRTM1 - How do I easily download SRTM3 files for the entire state?
2: I had previously used a app called DEM1 (which is no longer available on playstore) to download SRTM files, but I think those were SRTM1 files. Does that app still work and does it download SRTM3 files?
3: In addition to USGS Maps, I also have bought Lomaps for washington state, and I have downloaded elevation files for Lomaps from Locusstore. Is the elevation data that is downloaded with Lomaps SRTM1 or SRTM3? will that same SRTM elevation data be used with USGS maps?
here is a link to SRTM3 elevation data - https://dds.cr.usgs.gov/srtm/version2_1/SRTM3/North_America/