mostly suburban, with some agricultural land. The watershed is mostly located within Boggs Township. History In the 1800s, there was a sabbath school on Wallace Run. A narrow-gauge railroad once went through the creek's valley, but only traces of the grade remain in the 21st century. The Pennsylvania Fish and Boat Commission has done measurements of the fish and macroinvertebrate populations in Wallace Run since the 1930s. In the 1930s, the Civilian Conservation Corps constructed a fire road on Ganderstep Knob and stairs leading from it down to the stream, where there was a swimming hole. The swimming hole no longer existed as of January 2008. Three gas wells are located in the watershed, but only one is unplugged. A stretch of the stream was restored by the Wildlife for Everyone Foundation in 2010. Biology Near the headwaters, the main plants forming the canopy are hemlock and rhododendron. Further downstream, but still in the first half of its course, the main trees are ash (particularly white ash and green ash), chestnut oaks, red oaks, red maples, tulips, yellow birches, and hemlocks. There are no riparian buffers in the lower reaches of the stream; there are often lawns instead. Wallace Run is an approved trout stream (Class A Wild Trout Waters) by the Pennsylvania Fish and Boat Commission. Both brook trout and brown trout live in the stream. Recreation Opportunities for recreation on Wallace Run include canoeing, kayaking, birdwatching, and fishing. See also List of rivers of Pennsylvania Spring Creek (Bald Eagle Creek tributary) References Rivers of Centre County, Pennsylvania Tributaries of the West Branch Susquehanna River Rivers of Pennsylvania