SLIPPERY ROCK — Slippery Rock Area Parks and Recreation will be holding its Junk In Your Trunk event Aug. 4.

Participants will park their car in a spot, open their trunks and sell items out of it.

Spots open at 8 a.m. with the sale running from 9 a.m. to 3 p.m. Registration is required, costing $5 per vehicle, per spot.

For more information, call 724-794-8180.

SLIPPERY ROCK TWP — Marcellus Outreach Butler will be sponsoring a Marcellus Monitoring Training on Friday.The free event will be from 9 a.m. to 3 p.m. at the Macoskey Center at Slippery Rock University, 246 Harmony Road.The workshop will provide information on the science behind Marcellus Shale, locating drilling sites, visual assessment and water monitoring. Water monitoring equipment will be made available.Residents in areas where Marcellus Shale extraction is occurring or proposed are encouraged to attend.To register or for more information, contact Diane Sipe with Marcellus Outreach Butler at 724-272-4539 or sipediane5@gmail.com, or Veronica Coptis with the Mountain Watershed Association at 724-455-4200, Ext. 4, or veronica@mtwatershed.com.

GROVE CITY — The Grove City Community Library will present “Marketing Yourself For Your Next Job Opportunity” on Monday from 6:30 to 7:30 p.m.The event will help people on where to begin a job search, how to prepare a cover letter and resume, and how to prepare for an interview.The free event will be held at the library, 125 W. Main St. For more information, contact the library at 724-458-7320.