The Oregon Ridge Nature Center is located in the 1,100 acre Oregon Ridge Park. The Park and Nature Center are facilities of the Baltimore County Department of Recreation and Parks. The park grounds are open daily from Sunrise to Sunset. The Nature Center building is open 9 a.m. - 5 p.m. Tuesday thru Friday. Winter Hours – November thru February the grounds are open 8 a.m. - 5 p.m. If you are planning a group visit of 10 or more people, you will need to call at least one week in advance for a Group Gathering Permit. Please note that swimming, alcohol, crabs, glass containers, fires, personal grills, balloons and amplified music are prohibited in the park.