Blood collection in Canada (except Quebec) is carried out under Canadian Blood Services.
There will be great need for blood, but the logistics of collecting it at this time are complicated. You need to arrange an appointment and if you can’t get an appointment now, consider trying again in a week or so. CBS says:
It’s safe to donate blood during COVID-19, and critical for patients
You can book appointments through their website or by using their app, GiveBlood, which is available for Android in the Google Play Store and for Apple at the App Store.
If you get an appointment, you will need to travel to where they direct you, which likely involves travel up the valley.
Visit blood.ca for more information.