This study describes the development of 13 moisture-sensitive tree-ring chronologies from the
Churchill River Basin of northern Saskatchewan, and their application to estimate streamflow prior to
the initiation of direct monitoring in 1929. Most of these new tree-ring records extend back to the early
or mid-19th century, with their length limited by the lifespan of trees growing in fire-dominated boreal
forest environments. Ring-width index chronologies are significantly correlated with mean annual and
summer streamflow across the watershed; those records that were highly (above 0.6) correlated with
streamflow were chosen as potential predictors in linear regression models.
