Stardew Valley Quarry is the area with a lot of randomly generating rocks that is located just next to the mountains. In order to access the area you will have to repair the bridge. You can find this ruined bridge going east from the Mines and Adventurer’s Guild.
To repair the bridge leading to the quarry you will have to complete the Crafts Room in the Community Centre. Completing Crafts Room includes the following bundles:
Spring Foraging Bundle that requires the collection of Wild Horseradish, Daffodil, Leek, Dandelion.
Summer Foraging Bundle where you will have to deliver Grape, Spice Berry and Sweet Pea to the Community Centre.
Fall Foraging Bundle that consists of Common Mushroom, Wild Plum, Hazelnut and a Blackberry.
Winter Foraging Bundle that requires you to collect Winter Root, Crystal Fruit, Snow Yam, and Crocus and bring them all to the Crafts Room in the Community Centre.
Construction Bundle requires you to collect 99 wood twice, 99 pieces of stone, and 10 pieces of hardwood.
Exotic Foraging Bundle requires five items, however there are more than five possibilities of what you can take to fill the empty slots. So here you can bring whatever you encounter first or that is the least valuable to you. To complete Exotic Foraging Bundle you will have to bring any five items of the following: Coconut, Cactus Fruit, Cave Carrot, Red Mushroom, Purple Mushroom, Maple Syrup, Oak Resin, Pine Tar, Morel.
Once you complete all the bundles in the Crafts Room the bridge to quarry will be repaired the following morning. If you are a Joja fan and the Community Centre belongs to Joja Corporation, the Quarry will be unlocked once you have purchased Bridge out of the Town Restoration projects using Joja Community Development Form.
The Quarry is quite a useful area since you can get stones, ores, minerals or even geodes without going down to the Mines. Unlike the Mines, Quarry is not a dangerous place. There are zero bugs, slimes or any other creatures that would like to send you to the doctor in the Quarry. So it’s an easy-to-access source to various materials without any danger except for energy consumption while mining the stones (you can always use the bombs to make your job easier, though).
If you are so far in the game that rocks and ores and occasional minerals do not make you happy, there are more creative ways to use the Quarry. You can fill it with Crystalariums to provide you with huge amounts of Diamonds, Rubies or any other precious stones. Here are some ideas and the profitable outcomes:
