https://land8.com/members/markharrison/activity/ Activity feed for Mark Harrison. Wed, 08 Apr 2026 15:17:23 +0000 https://buddypress.org/?v=6.0.0 en-US 30 hourly 2 6b18dd26fff14b47cbf1eaafc3d7172c http://land8.com/forums/topic/site-survey-equipment/#post-160631 Fri, 16 Sep 2011 21:07:46 +0000 Range poles with an optical prism: Start with either a sheet of grid paper or an aerial photo with a card table on the site. Tape paper onto foam core board. Tape board onto card table. If using an aerial, get it from a professional aerial survey mapping company, not Google Earth. Call the city planner if you can’t find a source. Find two…[Read more]

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