MD 121 (Clarksburg Road), the diagonal road from bottom-right to the interchange at top-left, where it continues to the horizon.  From the interchange toward the bottom-left is Stringtown Road.  These roads interchange with I-270, which runs left to right, toward the top.  The left-right roadway toward the bottom is MD 355.  Clarksburg, MD, USA
<a href="//commons.wikimedia.org/wiki/User:Thisisbossi" title="User:Thisisbossi">Andrew Bossi</a>
CC BY-SA 2.5
<span class="int-own-work" lang="en">Own work</span>