Worker would stand on support, hold drill in one hand, pound UP with 8 lb hammer and then twist drill 1/4 turn. Do this until a 6-8" hole. Tap 4 more, then put in dynamite, retreat, light and start all over.
Oh give me a home, where the buffalo roam--Pt. 2 September 20th 2013 The drive from Bent's Old Fort to the US Air Force Academy was easy. We had advance warning of construction at the North Gate, so went in South Gate, and after a cursory glance at the sticker on the window of the RV and my Retired Civilian Marine card, got waved in. We got to the campground and the staff had everything ready for us. We had a lovely pull through site at the back with trees arou ... read more
North America » United States Britain's American colonies broke with the mother country in 1776 and were recognized as the new nation of the United States of America following the Treaty of Paris in 1783. During the 19th and 20th centuries, 37 new states were added to the origina... ... read more