Old volcanoes are not named like the young volcanoes you see in VolcanoWorld.
Old volcanoes have a long and complicated history.
They might be crushed, smeared, cooked, or even flattened by a glacier. I don't know of any old volcano that still has its original shape. For the oldest volcanic rocks in North America you'll have to go up to Canada. The lava flows are about 3.5 to 2.8 billion years old. They are part of the Abitibi Belt.