I'm testing out the placement accuracy of location. I pinpoint an exact location (say the corner of a building). I copy the exact coordinates (lat long or UTM) into the Locator box. The dropped pin can be from 170 feet to 700 feet from it's correct location. Is this a problem with the map scale or Spatial resolution of the map? I'm volunteering for a natural history museum in the paleontology department. Knowing the exact location of fossil location for mitigation purposes is critical. Thank you for any assistance.