Upvote:3
I have been there in the off-season. There is NOBODY checking passports :) We were a large group of scouts camping on the Canadian side but used the field on the US side for some activities. There was a “wire gate” strung up at the “border” but that was it.
You can’t really get ANYWHERE from there. Ross lake is lowered so you’re not about to jet boat it down into Northern Washington...
For the record, the US park rangers were WAY friendlier than the Canadian ones, that weekend.
Further: NPS staff didn’t check anything, just said “Hi” and reminded us that archery (even in a LARGE empty area) was not permitted in the park and that if he were to come back in 4 hours and not see any bows or arrows then obviously we weren’t practicing archery... wink wink...