you check this behavior visiting my app http://gaia.dbnet.ece.ntua.gr/mpanagou/ol_start.htm -- View this message in context: http://www.nabble.com/add%2C-remove-base-layers-depending-on-zoom%2C-change-baselayer-tp14789355p14814197.html Sent from the OpenLayers Users mailing list archive at Nabble.com.