  We have obtained a position (at sub-arcsecond accuracy) of the submillimeter
bright source GOODS 850-5 (also known as GN10) in the GOODS North field using
the IRAM Plateau de Bure interferometer at 1.25 mm wavelengths (MM
J123633+6214.1, flux density: S(1.25 mm)=5.0+-1.0 mJy). This source has no
optical counterpart in deep ACS imaging down to a limiting magnitude of
i(775)=28.4 mag and its position is coincident with the position found in
recent sub-millimeter mapping obtained at the SMA (Wang et al. 2007). Using
deep VLA imaging at 20 cm, we find a radio source (S(20 cm)=32.7+-4.3 microJy)
at the same position that is significantly brighter than reported in Wang et
al. The source is detected by Spitzer in IRAC as well as at 24 microns. We
apply different photometric redshift estimators using measurements of the
dusty, mid/far-infrared part of the SED and derive a redshift z~4. Given our
detection in the millimeter and radio we consider a significantly higher
redshift (e.g., z~6 Wang et al. 2007) unlikely. MM J123633+6214.1 alias GOODS
850-5 nevertheless constitutes a bright representative of the high-redshift
tail of the submillimeter galaxy population that may contribute a significant
fraction to the (sub)millimeter background.
