Start here for the walking tour. To succeed with this find, you'll need to familiarize yourself with the tour. I highly recommend doing the whole tour, but whether you decide to do the whole thing or simply solve the puzzle and grab the cache is up to you.
You can check your answers for this puzzle on Geochecker.com.
Here is the information you will need to gather from the print-out: Along the route you'll come across a Craftsman-style house at 1812 Walnut Street. What stop is this? Write down this number and mark it aa. aa=??
Take note of the last stop on the route and the number associated with it. Write this number and mark it bb. bb=??
Stop #6 has you in front of what many consider the finest house of its period in La Grande. It was converted to apartments during the first world war. It was also the cache owner's home for 3 years! How many years after 1898 was it built? Record the number as c. c=?
Near the end of the tour you'll learn about a house built in 1872 and relocated to its present location at 9?? Spring Avenue. These two numbers let's call dd. dd=??
1708 Second Street is an example of a design offered "by mail" in 1908. The foundation of the house utilizes the molds contractors used to cast their own concrete blocks. What stop along the route am I referring to? Mark this e. e=?
Finally, look for the structure featured on the northeast corner of Fourth & "O". What year was it built (19??). Call this number ff. ff=??
Now, organize your solutions into this waypoint: N45 aa.bbc W118 dd.eff The cache is located 5 blocks from the walking route, and can be accessed from three different entry points. The terrain rating is based on the steepest route you might take. You'll be looking for a smallish (40oz?) tupperware container. The cache location is on the national register of historic places.