Coquina Mine via the Marr Ranch Trail - Intermediate Hike

We'll start from the Las Lajas trailhead on Evening Sky drive in Simi Valley but take a different route from past hikes to the Coquina mine. At the bottom of the hill, we'll turn left to catch the Marr Ranch trail. The Marr Ranch trail climbs giving us great views as we head to the turnoff for the mine. This was a strip-mining operation that started in 1929 and ceased in year 1935. Limestone was mined here for an extremely pure form of Calcium Carbonate (Calcite CaCO3). As you start to travel further up the mine trail, you'll find abandon mining equipment with large boulders of both limestone and fossils. The mine trail will end at the mining site with the largest mining equipment abandoned there. We'll return using the Marr Ranch trail to the Las Lajas trailhead.
The hike is about 7.5 miles with close to 1600 ft of gain.

Directions
In Simi Valley, exit 118 at Yosemite and drive north to Evening Sky Drive, observing all speed limits and stop signs (traffic enforcement can be enthusiastic in this neighborhood). Turn right on Evening Sky and watch for the Las Llajas Trailhead on the left (there is a small kiosk).

Please bring: at least one liter of water, snacks, an extra layer of clothing, a charged cell phone, identification, and sunscreen and anything else you might need on the trail.

DISCLAIMER / RELEASE OF LIABILITY
The hike host is a volunteer and not responsible for the group. Safety should be a priority for everyone in the group. Please treat this meet-up as hiking with a group of friends. If you become fatigued and unable to continue the hike, it is expected you will advise the hike host of this and return to our starting point on your own. If you are able to proceed, it is expected that you will maintain line of sight with other members of the group at all times and help to promote the group’s safety and fitness goals.
Outdoor sports and other events we plan can be inherently dangerous and accidents may happen. By participating in any posted event, you are taking responsibility for your own safety and well-being. The Weekday Trailblazers Meetup Group and its organizers are not trained leaders and we do not confirm the qualifications of any of its members to lead or participate in trips. All participants take full responsibility for their own actions.
If you choose to sign up for this or any Weekday Trailblazers Meetup event, you are releasing the Weekday Trailblazers Meetup Group, its organizers, and sponsors from all liability in case of possible injuries. Your personal safety depends on your own judgment and experience. You agree that you can navigate back to your transportation by yourself, and agree to do so if you fall behind and lose track of the main body of hikers.
There are no "Plus One's" on this hike. If you want to bring someone along, have them sign up, and make sure they're aware of, and agree to, this disclaimer.