No, it's further west. If you go to the map, continue west to a sharp right curve where you see "Amargo Creek" on the map. That is where the rock was. There are a few pieces of sandstone between the road and the creek that are the remains of 492 rock. The Jicarillas must had a pile of money to pave and widen the road, build and new bridge across the Navajo River (you used to drive over the RR bridge). Only to have it dead end on a gravel road..
At least the left the bridge and did a sort-of job on restoring the tank.