We present the discovery and subarcsecond localization of a new Fast Radio Burst with the Karl G. Jansky Very Large Array and realfast search system .
The FRB was discovered on 2019 June 14 with a dispersion measure of 959 { pc cm ^ { -3 } } .
This is the highest DM of any localized FRB and its measured burst fluence of 0.6 Jy ms is less than nearly all other FRBs .
The source is not detected to repeat in 15 hours of VLA observing and 153 hours of CHIME/FRB observing .
We describe a suite of statistical and data quality tests we used to verify the significance of the event and its localization precision .
Follow-up optical/infrared photometry with Keck and Gemini associate the FRB to a pair of galaxies with r \sim 23 mag .
The false-alarm rate for radio transients of this significance that are associated with a host galaxy is roughly 3 \times 10 ^ { -4 } hr ^ { -1 } .
The two putative host galaxies have similar photometric redshifts of z _ { phot } \sim 0.6 , but different colors and stellar masses .
Comparing the host distance to that implied by the dispersion measure suggests a modest ( \sim 50 ~ { } { pc cm ^ { -3 } } ) electron column density associated with the FRB environment or host galaxy/galaxies .