We spent the better part of the day at Valley of Fire State Park near Las Vegas. Entry fee was $15 for non-Vegas residents when we visited. I recommend getting there early in the morning & packing a lunch.
Beehive area.
Arch Rock - if you continue on the road past Atlatl rock.
Another fun area to explore near Arch Rock
Balanced Rock - easy hike from the Visitor Center.
Rainbow Vista Trail
Fire Canyon overlook
Parking area for White Dome loop
Parking area for Seven Wonders trail. It was so crowded we parked at White Dome & hiked over the hill to start the Seven Wonders Trail.
Seven Wonders loop to Pastel Canyon - my favorite of the park
Elephant Rock