Begin by exporting the data from Notion. Navigate to the Notion page you wish to export. Click on the three dots in the upper right corner and select "Export." Choose the format you prefer, such as CSV or Markdown, and download the file to your local machine. This step allows you to have the raw data in a format that can be processed further.

Once you have the exported file, open it using a text editor or spreadsheet software to ensure that all data is correctly formatted. Clean the data to remove any unnecessary text, correct any formatting issues, and ensure consistency in data types. If you exported as Markdown, you may need to convert it to CSV for easier processing.

Log into your Snowflake account. If you haven't already, create a database and a schema where the data will reside. Use the Snowflake interface or execute SQL commands to set up the necessary tables that match the structure of your Notion data. Ensure that the table columns correspond to the data types in your CSV file.

A Snowflake stage is a temporary storage location for files. Create a stage by executing a SQL command in Snowflake:
```sql
CREATE OR REPLACE STAGE my_stage;
```
This will create a named stage where you can temporarily store your CSV file before loading it into the table.

Use the SnowSQL command-line tool or Snowflake's web interface to upload your CSV file to the stage. If using SnowSQL, use the PUT command:
```shell
PUT file://path_to_your_csv_file.csv @my_stage;
```
This command uploads your local file to the Snowflake stage you created in the previous step.

With the CSV file in the Snowflake stage, use the COPY INTO command to load the data into your table:
```sql
COPY INTO my_table FROM @my_stage/file_name.csv
FILE_FORMAT = (TYPE = 'CSV', FIELD_OPTIONALLY_ENCLOSED_BY = '"');
```
Replace `my_table` with the name of your table and `file_name.csv` with the name of your CSV file. This command will populate your Snowflake table with the data from your CSV file.

After loading the data, run a few SELECT queries to verify that the data has been imported correctly into Snowflake. Check for any discrepancies or errors. Once verification is complete, clean up by removing the file from the stage if no longer needed:
```sql
REMOVE @my_stage/file_name.csv;
```
This ensures your Snowflake environment remains organized and only contains necessary data.