  The Cherenkov Telescope Array (CTA) is the next major ground-based
observatory for gamma-ray astronomy. With CTA gamma-ray sources will be studied
in the very-high energy gamma-ray range of a few tens of GeV to 100 TeV with up
to ten times better sensitivity than available with current generation
instruments. We discuss the proposed US contribution to CTA that comprises
imaging atmospheric Cherenkov telescope with Schwarzschild-Couder (SC) optics.
Key features of the SC telescope are a wide field of view of eight degrees, a
finely pixelated camera with silicon photomultipliers as photon detectors, and
a compact and power efficient 1 GS/s readout. The progress in both the optical
system and camera development are discussed in this paper.
