We have surveyors working on the construction site for HS2 in England, in areas where woodlands have been cleared. There are no other landmarks, and streetmap style backgrounds are no use, so they are finding it hard to orientate themselves when the aerial imagery they see shows woodlands that were felled years ago. I am advising them to switch off ESRI maps in their settings so they see Google aerial imagery, which is more recent and shows the cleared areas of woodland. However, if they do this they can't see any of the ArcGIS Online feature layers we created specifically to help them do their jobs, so this is a poor compromise. * Best solution would be for ESRI to keep their aerial imagery up to date, at least as good as Google or Bing. * Alternatively, can you combine ArcGIS map/feature layers with backgrounds from other providers, like Google or Bing? * It could work even better for us if you allowed us to use maps published by someone else. Our client does monthly drone surveys of their site and publishes them via ArcGIS, but requiring authentication. I'm not sure of the details, but if we could republish a custom map as a background, we could potentially be very up to date.