In July and August 2007, Parkway Drive appeared on that year's
Warped Tour in the US. On 24 July 2007,
Horizons was announced for release, and its track listing was revealed. On 20 August, "Boneyards" was posted on the band's
Myspace profile.
Horizons was made available for streaming on 1 October, and was released on 6 October through Epitaph. In October, the band toured across Australia, before going on tour in Europe with
Comeback Kid,
Cancer Bats,
the Warriors, and
This Is Hell the following month. In December, the band went on a west coast US tour alongside
XDeathstarx. In January and February 2008, the band went on a US tour alongside
Killswitch Engage,
the Dillinger Escape Plan and
Every Time I Die. Following this, the band performed at the
Groezrock festival in Belgium, and went on an Australian tour with
Have Heart,
Antagonist and
Break Even. In July and August, the band supported
Darkest Hour on the Trash & Burn tour. During the tour, the band performed at Robot Mosh Fest. In February 2009, the band played a few shows in China. In April and May 2009, the band went on a tour of the US with
Stick to Your Guns and
MyChildren MyBride. The band appeared at
The Bamboozle and West coast Riot festivals in May and June 2009, respectively. After this, they performed at With Full Force festival in Germany in July 2009. They then toured Australia in August 2009, with support from
August Burns Red and
Architects. In September and October 2009, the band went on a US tour with
A Day to Remember,
In Fear and Faith and
I See Stars. == Critical reception and legacy ==