This Content Originally Published by a land surveyor to Land Surveyors United Network
Many years ago I opened a quarry for US Army Corps of Engineers (Combat Units' Training) on the Navajo Nation. Not much to do with actual surveying, but had some interesting meetings with MSHA throughout the entire summer with the Army's combat engineering equipment used on the quarry site. Needless to say, MSHA was not impressed!. We brought in two battalions at a time to construct various horizontal training projects on the Navajo Nation, and used two 140 Ton/Hr (civilian ) and two (US Army) 90 Ton/Hr crushing and screening plants. The Navajo Nation wouldn't let us blast, so we did mechanical extraction with 12 Cat 610 excavators with 7,500# hammers. We were mining alluvial granite (extremely hard) half of our equipment was mining and the other half being mined.Talk about herding cats!
JAC is right, quarries are deadly dangerous. After heavy rat-tat-tat, 24/7 for weeks, the mountainside took a heavy sigh and releases several thousand tons of boulders, and never mind what's in its way..
Of interest may be how you mark its perimeter, and varying height (elevation) for quick, accurate inventory of product released, removed and remaining (R3). My uncle owned a very large gravel pit in Northern Minnesota. It is actually an endless pit, as its been (and continues to be) mined heavily for 60 years, And yes, deadly, as two of my cousins died in that pit,