Along with free admission into any National Park, join rangers at Lake Mead National Recreation Area for a litter cleanup Sept. 24. The first 100 volunteers will receive a National Public Land’s Day coupon that will give them one-time free access to a public land on a different date. The cleanup will be focusing on an area of the park that was heavily used during the summer. Volunteers of all ages welcome, but anyone under the age of 18 will need a parental approval form signed by a parent or guardian. To volunteer, call 702-293-8714.