Gates have been put in for a number of reasons all across the Lower Mainland and Fraser Valley areas. Mostly due to idiots and car thieves. Too many cars get dumped in any particular area and it is closed off. The other would be idiot campers leaving grossly huge messes on the sides of roads, campsites or any pull of area they can get too. I have a growing concern for what is left of our off-road use, I have seen too many areas get blocked off for these reasons.
Acquiring a key will be a lengthy process, if you make it through. Best way is to try and align yourself with a 4x4 group. More often then not these are the ones who have pursued access into these areas and have recieved it in a few cases. 4x4ers are not the ones to point the finger at, the majority of the 4x4 community is a respectable bunch, very similar to anglers. However just like in fishing you will find the idiots mixed in with them. The few always make the rest look bad! I have been a 4x4 enthusiast for a while, for the last little while I have been unable to lift my last couple of trucks so I have been limited on where I can go.