Large sinkhole opens at Wickiup Reservoir

Officials warn that the ground is ‘highly unstable’.

A sinkhole opened up on the edge of Wickiup Reservoir over the weekend — possibly due to a collapsed lava tube — but officials say water levels at the reservoir just west of La Pine are expected to remain stable.

Source: Large sinkhole opens at Wickiup Reservoir; Officials warn that the ground is ‘highly unstable’