Two tired? and Tireless

Riverbank, early this morning

What's in store for today?  Enjoying the River in the early morning.  But, before it gets too hot today (heat index forecast to be above 110°), need to finish mowing the lawn.  Can you find the tractor? (look along the Riverbank, near the right edge of the picture).

Zoom in on the tractor

It's two front tires are missing.  One lost its air, the other had a slow leak that needed pumping up: every other day, 100 strokes with the tire pump. Honey Locust, aka Thorn trees, are the culprit.  The ubiquitous thorns stick into the tires and pierce them.  So, it's time to quit messing around and get inner tubes inserted at the local Co-op.  That should put us back into business.