Robuta

https://www.usgs.gov/publications/lake-levels-a-discontinuous-permafrost-landscape-late-holocene-variations-inferred Lake levels in a discontinuous permafrost landscape: Late Holocene variations inferred from... During recent decades, lake levels in the Yukon Flats region of interior Alaska have fluctuated dramatically. However, prior to recorded observations, no data... lake levelsdiscontinuous permafrost