With an elevation of 1330m, Rogers Pass is the highest section of Highway 1.
The Rogers Pass Discovery Centre is well worth a stop - it's one of my favourite small museums anywhere in Canada! The Centre's interpretive exhibits share the history of the pass, including the railway construction, tourism origins and current avalanche control program (artillery fire).
Entry is free with a Parks Canada day pass, which is required to stop anywhere in the national park ($22/vehicle with up to 7 people).
Even if you don't plan to go into the Centre, this is one of only two good places to stop in the Rogers Pass area. The other is Rogers Pass Memorial Park, just a little further westbound.