Arc of Ascent was a stoner/psychedelic/rock band formed and fronted by Craig Williamson (of Lamp of the Universe, ex-Datura), formed in April 2008. In March 2010 they released their first album, Circle of the Sun. Their second album, The Higher Key, was released in March 2012. Their third album Realms of the Metaphysical was released in April 2017.

Arc of Ascent are:

Craig Williamson (bass, vocals)
Matt Cole-Baker (guitar)
Mark McGeady (drums)