After my latest trips, I counted them up and found that I've walked 10 permanent outdoor labyrinths in 9 states and the District of Columbia, 8 of them since just March of this year. That doesn't count the one constructed on the Mall in Washington, DC, for World Labyrinth Day or the one I drew on Summerland Beach near Carpenteria, CA.
View Labyrinths I have walked in a larger map. If you zoom in satellite view, you'll be able to see most of the labyrinths quite clearly.