Black Hills Parks & Forests Association (BHPFA) and Jewel Cave National Monument are celebrating Earth Day and the start of National Park Week with a free build-a-bat house workshop and park clean up. Build your own bat house and learn tips and tricks for hanging your box with BHPFA Program Manager Andrea Fountain from 10-11:30 am MT. From 1-3 pm join BHPFA and Jewel Cave staff to take the Leave No Trace Earth Day Pledge and clean up the park for summer. Disposable gloves and trash bags will be provided. After the clean-up, there will be lemonade and snacks to celebrate local cave explorer Jan Conn’s 99th birthday. Pre-registration is required for both activities, due to limited supplies. Events could be canceled due to inclement weather. Questions? Please contact BHPFA at (605)745-7020.Register Here!