The "Welcome to Squamish" sign that the 3rd edition bouldering guidebook refers to is actually a green highway sign that says "Squamish 10 and Whistler 67 (km)". Other than that, the guidebook has a great description of the approach.
Here you can add a new climb to the Sendage database.
Please do your best to keep the Sendage database free of duplicates.
Only create a new entry if you can't find the climb in the search results.
If you don't agree with the grade, suggest a new one when you tick the climb off.
Don't intentionally misspell the climb to change the grade!