Patapsco_robin1 May 11, 2015 A robin heralds in spring in the Hollofield Area campground in Patapsco Valley State Park: Glynn Wilson Related Posts:If A Tree Falls in the Forest, Will it Ever Be Heard…Capturing Fall Foliage Pictures in Maryland's…Ranger Program: Welcome to WashingtonNew Wilderness Scenic Areas Proposed by Shenandoah…National Parks Set Visitation and Economic Impact…On the Eve of Jan. 6, President Biden Condemns Trump…