Indian Mesa Ruin

This unstabilized ruin, built by Hohokam Puebloans about 1000 years ago, holds many clues to the story of the original occupants.  The early people located their village, not on the highest hill, bur rather in a location from which most of the surrounding countryside could be observed.  When the community was occupied, from about 1000 to 1200 AD, the inhabitants were apparently concerned about attack.  They located their village in an easily defendable position. 

Indian Mesa’s flat top spans about five to seven acres.  The village, with some standing wall ruins about five feet high, may have housed about 100 people.  There is only one route to the top.  It follows one end of a circling 100-foot drop and terminates at a narrow cleft.  Portals in the village walls overlooking the trail would allow occupiers to shoot arrows directly at any approaching attackers.  At a right angle another limestone wall with portals, would have allowed defenders to launch arrows at any hostile climbers.  The village was mostly self contained, water being available from the Agua Fria River below.  Many pottery shards still litter the ground.  Some of the shards are up to a half-inch thick, suggesting that they may have been parts of large water containers.  We also found a metate, or a stone milling basin, which the women used to grind their corn and mesquite seeds.

Indian Mesa is located within Lake Pleasant Regional County Park, Maricopa County. The lake, originally used for agricultural irrigation, is unique in a number of ways.  It is the most popular lake in the Phoenix metro area, but few people see the north end because of its inaccessibility.  The lake is also one of the biggest, hosting many water sports and activities.  The park supports camping, fishing, boating, all-terrain vehicle trails, nature walks, water skiing and more, mostly at the south end near the dam. 

The Agua Fria River feeds the lake but only in a small way.  The lake is mostly a storage facility for Colorado River water brought in via the Central Arizona Project (CAP).  A few years ago the New Waddell Dam was built, submerging the old Waddell Dam.  The CAP Canal channels Colorado River water from just south of Lake Havasu City some 200 miles away to southeast of Tucson.  This is an important component in Arizona’s water plan.  The close proximity of the Southern Bradshaw Mountains contributes to the difficulty in reaching the north end of the park where Indian Mesa is located.

My friend, Klaus, and I decided this would be a good day trip.  We had been in the vicinity previously and were familiar with the area.  We did take note of two important variables. 

One was the weather.  Arizona’s summer monsoon season was in full swing. The monsoon occurs when the seasonal winds change direction.  The humidity rises and the chance of afternoon rain and flash flooding increases. 

The second variable was the level of the lake.  If the lake level is raised, it is nearly impossible to get into the area.  Checking the lake report we found the lake at 71 percent.  This is low enough to allow access.  We had attempted to reach the site previously when the lake was 87 percent full, and we had to turn back.  Much of the trail at that time was flooded to a depth of 20 feet.  Keep in mind the lake level is artificial and not necessarily dependant upon the weather. 

Although the sky was dreary, we checked the weather report and decided we could beat the afternoon threat.  We wouldn’t be traveling far and it seemed like a minimal risk.

After an early breakfast we headed north on I-17 to Table Mesa Road, taking it to the west.  From the park boundary, it is about two miles to Indian Mesa.  The Agua Fria River was low in spite of the previous day’s rain.  We considered that to be a good sign.  When the lake is at a high level, this is as far as you can go.  The lake bottom nourishes much greenery to support animals.  A local rancher still runs cattle in the area.  The riparian area also supports wild burros.  These curious, feral animals whose ancestors were released by miners over 100 years ago, showed little fear of us.  The burros usually stay within five miles of the lake, needing a reliable water supply. 

>We passed beneath the white cliffs and crossed a flat area and began to climb above the highest waterlines of the lake.  A short, quarter mile climb brought us to the top of the mesa.  On the way, we observed Arizona pincushion and barrel cacti in bloom.  The natives would have harvested barrel cactus fruit as a food source.  After we explored the ruin, it was getting close to noon, and we decided to take the prudent approach and left Indian Mesa behind. 

>This trip can also be done from east to west, exiting at the Crown King-Castle Hot Springs trails or the opposite direction starting from the west side of Lake Pleasant.  We did the former.  On our way we passed a bald eagle breeding area, which is sometimes closed.  We didn’t see any eagles, but turkey vultures circled ominously above.  On the trail, we did discover a Gila monster, which is not often seen.  If approached from the west, the Humbug Creek crossing may be flooded.  This is an obvious indication that the lake is too high.  From the east, if the green area below the white cliffs is flooded, the lake is too high.  Given favorable weather and lake conditions, this is a wonderful day trip from Phoenix.

You will find an Arizona Highway Map and the New River, Arizona, and Governors Peak, Arizona, topographic maps to be useful guides to reaching Indian Mesa.  

 
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