  We present observations of an H$\alpha$ emitting knot in the thick disk of
NGC 4013, demonstrating it is an H II region surrounding a cluster of young hot
stars $z = 860$ pc above the plane of this edge-on spiral galaxy. With LBT/MODS
spectroscopy we show this H II region has an H$\alpha$ luminosity $\sim 4$ - 7
times that of the Orion nebula, with an implied ionizing photon production rate
$\log Q_0 \gtrsim 49.4$ (photons s$^{-1}$). HST/WFPC2 imaging reveals an
associated blue continuum source with $M_{V} = -8.21\pm0.24$. Together these
properties demonstrate the H II region is powered by a young cluster of stars
formed {\em in situ} in the thick disk with an ionizing photon flux equivalent
to $\sim$6 O7 V stars. If we assume $\approx6$ other extraplanar \halpha
-emitting knots are H II regions, the total thick disk star formation rate of
\ngc 4013 is $\sim 5 \times 10^{-4}$ M$_\odot$ yr$^{-1}$. The star formation
likely occurs in the dense clouds of the interstellar thick disk seen in
optical images of dust extinction and CO emission.
