EPSG:4421 — NAD83 / BLM 1N (ftUS)
Projected coordinate reference system. Area of use: USA - 180°W to 174°W - AK, OCS.
Code
EPSG:4421
Type
Projected
Area
USA - 180°W to 174°W - AK, OCS
PROJ definition
+proj=tmerc +lat_0=0 +lon_0=-177 +k=0.9996 +x_0=500000.001016002 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs
Geographic bounds
W -180° S 47.88° E -173.99° N 63.21°
Convert coordinates with EPSG:4421
Common transformations from EPSG:4421
- EPSG:4421 → EPSG:4326NAD83 / BLM 1N (ftUS) → WGS 84
- EPSG:4421 → EPSG:3857NAD83 / BLM 1N (ftUS) → WGS 84 / Pseudo-Mercator
- EPSG:4421 → EPSG:3395NAD83 / BLM 1N (ftUS) → WGS 84 / World Mercator
- EPSG:4421 → EPSG:4978NAD83 / BLM 1N (ftUS) → WGS 84
- EPSG:4421 → EPSG:7789NAD83 / BLM 1N (ftUS) → ITRF2014
- EPSG:4421 → EPSG:4267NAD83 / BLM 1N (ftUS) → NAD27
- EPSG:4421 → EPSG:4269NAD83 / BLM 1N (ftUS) → NAD83
- EPSG:4421 → EPSG:6318NAD83 / BLM 1N (ftUS) → NAD83(2011)
- EPSG:4421 → EPSG:4322NAD83 / BLM 1N (ftUS) → WGS 72
- EPSG:4421 → EPSG:26910NAD83 / BLM 1N (ftUS) → NAD83 / UTM zone 10N
- EPSG:4421 → EPSG:26911NAD83 / BLM 1N (ftUS) → NAD83 / UTM zone 11N
- EPSG:4421 → EPSG:26912NAD83 / BLM 1N (ftUS) → NAD83 / UTM zone 12N
Frequently asked questions
- What is the proj4 string for EPSG:4421?
- The proj4 definition for EPSG:4421 is: +proj=tmerc +lat_0=0 +lon_0=-177 +k=0.9996 +x_0=500000.001016002 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs
- Where is EPSG:4421 used?
- EPSG:4421 (NAD83 / BLM 1N (ftUS)) is defined for the area: USA - 180°W to 174°W - AK, OCS.