Benjamin Banneker Museum & Historic Site / Trolley Line #9 Trail – Catonsville, MD – 7/20 Blandair Regional Park – Columbia, MD – 9/21 Patapsco Valley State Park – Hollofield Area – Ellicott City, MD – 3/23 Middle Patuxent Environmental Area – Clarksville, MD – 6/20 Wincopin Trails – Jessup, MD – 6/20 Share this: Click to share on Facebook (Opens in new window) Facebook Click to print (Opens in new window) Print Click to share on Pinterest (Opens in new window) Pinterest Like this:Like Loading...