The access for Mendoza Canyon is via the good graces of the owner of the King Anvil Ranch you pass through to get to the canyon. Dogs are not allowed per land owner request.
READ THIS DOCUMENT AND OBEY! concernedclimbers.com/Mendo… Update from Jeff Mayhew 3.12.14:
Extended Access Info Matt Walton from the AZ Game and Fish Dept. advised me that extended access to Mendoza Canyon will be allowed to hikers and climbers through a pilot project again this year. The normal closure begins March 1st and runs until September 1st. From March 1st thru April 30th you can contact Matt at 520-400-4022 or at mwalton@azgfd.gov to apply for access. You must have a valid AZ State Land Permit and apply with Matt 10 days to 2 weeks in advance.
You will then be given the combination to the gates on King's Anvil Ranch that lead to Mendoza Canyon. These combinations will be changed every week or 2. Consecutive days of access may be allowed, but overnight camping will not be allowed.
Matt asks that we NOT approach the ranchers about access during this period. All questions should be directed to Matt. Update from Charles Vernon (12.6.10): We ran into John King's daughter herding cows yesterday, on the way into the canyon. She was very nice, and we talked to her for a little while. She believes that the missing traps that led to loss of access last year were a result of hikers (climbers? hunters?) whose dogs got caught in the traps, leading to the dog owners taking or destroying the traps to free their dogs.
Regardless of what exactly happened, she made it clear that dogs are not welcome. It sounds as though just heading out there with dogs, without more, could be enough to cause them to rethink access. So please, do not bring dogs to Mendoza!