Extended Data Fig. 5: Context for boomerang stencil motif DR013-09.

(a) shows the original photograph. (b) and (c) are D Stretch (http://www.dstretch.com) enhanced, false colour versions of the same photograph to highlight the superimposed paintings over the boomerang stencil. (d) illustrates the assumed position of the boomerang stencil with enhancements applied in (e) and (f).