I assumed these were extirpated by recent (past 10 years) incursion of bullfrogs into north Potholes Reservoir. I've been doing week long camping/surveys at this spot and region since 1992. None were seen in 2013 but at least four were found in traditional pre-bullfrog spot in 2014. This is one area of Washington state where Northern Leopard Frogs were historically found. (No data for 2008 or 2015-16). (edited May 2017)