  We present the first ALMA observations of the closest known extrasolar debris
disc. This disc orbits the star $\epsilon$ Eridani, a K-type star just 3.2pc
away. Due to the proximity of the star, the entire disc cannot fit within the
ALMA field of view. Therefore, the observations have been centred 18" North of
the star, providing us with a clear detection of the northern arc of the ring,
at a wavelength of 1.3mm. The observed disc emission is found to be narrow with
a width of just 11-13AU. The fractional disc width we find is comparable to
that of the Solar System's Kuiper Belt and makes this one of the narrowest
debris discs known. If the inner and outer edges are due to resonances with a
planet then this planet likely has a semi-major axis of 48AU. We find tentative
evidence for clumps in the ring, although there is a strong chance that at
least one is a background galaxy. We confirm, at much higher significance, the
previous detection of an unresolved emission at the star that is above the
level of the photosphere and attribute this excess to stellar chromospheric
emission.
