Oregon Spotted Frog (Rana pretiosa) Monitoring in the Oregon Cascades 2012-2015

This dataset contains information from visual encounter surveys conducted between 2012 and 2015 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort in the Oregon Cascade Mountain Range. We surveyed 91 sites using a rotating frame design in the Klamath and Deschutes Basins, Oregon, which encompass most of the species' core extant range. Data consist of spotted frog counts aggregated by date, location, and life stage, as well as data on environmental conditions at the time of each survey.