> ## Documentation Index
> Fetch the complete documentation index at: https://wiki.latch.bio/llms.txt
> Use this file to discover all available pages before exploring further.
# Mounting GCP Buckets
> Latch allows you to mount your own GCP Buckets and use them the same as you would any data on Latch.
This will permit Latch to access the list of the projects that you have access to for 1 hour.
Latch requires the following permissions in your project:
* `storage.buckets.list` permission on the project level.
* `Storage Admin` on the bucket level.
Visit the [Create Custom Role page here.](https://console.cloud.google.com/iam-admin/roles/create)
1. Give the role name `Bucket Lister`.
2. Click on **Add Permissions** and enter `storage.buckets.list`. This will permit Latch to list buckets in your project which is required when mounting your bucket. After you have mounted the bucket, you can remove this permission.
3. Click on **Create**.
Visit the [IAM & Admin page here.](https://console.cloud.google.com/iam-admin/iam)
Visit the [Storage Browser page here.](https://console.cloud.google.com/storage/browser)
1. Click on the bucket that you want to mount.
2. Click on **Permissions** and `Grant Access`.
3. Enter the email address `latch-data@latchbio.iam.gserviceaccount.com` and select the role `Storage Admin`.
4. Click on **Save**.
On mount, Latch will set up notifications for the bucket to monitor file updates in the bucket and update the CORS policy to allow Latch to access the bucket data from the browser.
1. Go to the [Storage Browser](https://console.cloud.google.com/storage/browser) page in your project.
2. Click on the bucket that you want to mount.
3. Click on **Protection** and enable versioning.
The modal will close and the bucket you added will appear in the data list.
### Removing a Mounted Bucket
Simply hover over the bucket in the data viewer, click the ellipsis and select **Remove**.
## Troubleshooting
### My bucket isn't showing up in the list in the Mount GCP Bucket modal.
This might be because your bucket isn't versioned. Latch only supports versioned buckets for mounting. To check to see if your bucket is versioned or not, open the bucket in GCP, go to the **Protection** tab and check that the Object Versioning is enabled.
