LEGO City Volcano Exploration Base Construction Toy – Link 
Amazon has this marked down right now to an all time low of just $67 w/ free shipping!
This set normally sells for about $90.
- Features a mobile operations center, excavator, wheeled dumper, drone, boulder rack and a volcano with an eruption function
- Accessory elements include 4 boulders, 4 crystal elements, shovel, pickaxe, walkie-talkie, camera, crowbar, drill and a metal detector
- Includes 6 minifigures: a female scientist, scientist with heat suit, female worker, male worker and 2 adventurers
- Mobile operations center with truck measures over 4″ (12cm) high, 12″ (31cm) long and 2″ (7cm) wide, Excavator measures over 5″ (14cm) high, 6″ (17cm) long and 3″ (10cm) wide
- Volcano measures over 5″ (13cm) high, 6″ (17cm) wide and 6″ (17cm) deep