Phosphate mining in the United States

In 2015, 27.6 million metric tons of marketable phosphate rock, or <a href="/facts/Phosphorite/nX6Cqkcc">phosphorite</a>, was mined in the United States, making the US the world's third-largest producer, after <a href="/facts/China/lTjIXY5p">China</a> and <a href="/facts/Morocco/6ly8170M">Morocco</a>. The phosphate <a href="/facts/Mining_industry/g6uDIFab">mining industry</a> employed 2,200 people. The value of <a href="/facts/Phosphate/FDGVCxUG">phosphate</a> rock mined was US$2.2 billion.
As of 2015, there are 10 active phosphate mines in four states: <a href="/facts/Florida/cF245A3Q">Florida</a>, <a href="/facts/North_Carolina/VhKNTULI">North Carolina</a>, <a href="/facts/Idaho/68ELs9Um">Idaho</a>, and <a href="/facts/Utah/te7zUyBX">Utah</a>. The eastern phosphate deposits are mined from open pits. The western deposits are mined from both surface and underground mines.
The exact phosphate content of the phosphate rock mined in 2015 is not available, but in the latest five-year period for which ore grades are available, 2009-2013, the grade of US phosphate rock varied from 28.5 to 29.0 percent P2O5.
As of 2016, remaining reserves of phosphate rock in the United States totaled 1.1 billion metric tons.

Phosphate mining in the United States open-in-new

Phosphate mining in the United States