The June 27th lava flow remains active. At mid-day yesterday, the most distant active lava was 12.6 km (~7.8 miles) from the vent, or about 1.9 km (~1.2 miles) from the eastern boundary of the Wao Kele o Puna Forest Reserve. However, lava a few hundred meters (yards) back from the front was flowing into a large ground crack, where it disappeared from view as it cascaded into the depths. A line of steam, inferred to represent the distance that lava had traveled along the crack, extended east from that spot. The most distant steaming along the crack was 12.8 km (8.0 miles) from the vent and 1.7 km (1.1 miles) from the Forest Reserve boundary. See Map.