The time required to boat from the marina and visit the ruins makes a nice day for most people in a ski boat. A GPS is useful in verifying you are on the correct route and in locating specific ruins. The USGS 7.5' Map titled "Knowles Canyon" shows the area described. Navigation for this route is easy. All Defiance House waypoints and maps use the WGS84 datum.
I know the National Park Service likes to promote these ruins as lightly restored, but they really look nothing like they did when I first visited them in the mid 1970's. If these ruins are lightly restored I wonder what heavily restored ruins look like. Honestly, without a lot of restoration and maintenance these ruins would now be nothing but a big pile of rocks with a pictograph above them from the amount of visitation they receive. Anyhow, restored or not, Defiance House makes for a wonderful Lake Powell Destination.
Boat up Forgotten Canyon about 3/4 mile to a junction. The canyon on the right (south) contains a small Anasazi Granary (N37° 33' 02", W110° 36' 45") you can see the granary from the water, binoculars will prove useful for viewing. After visiting the granary you will want to boat up the left (north) fork. After 1/4 mile you will reach a second junction. Take the right (south) fork and continue upstream approximately 1 1/2 miles to Defiance House (N37° 32' 49", W110° 35' 12").
How close you can boat to Defiance House is depends on the lake level. When the lake is above 3650' you can boat to the base of the ruins. When the lake is extremely low the hike to the ruins can be up to 2 miles each way.
Please take only pictures and leave only footprints.
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