Tuesday, May 26, 2009

Knife Edge Trail and Spring Wildflowers

The Knife Edge Trail at Mesa Verde National Park in southwest Colorado is one of two or three interpretive trails in the park that emphasize the plants found in the area, and their use by the Ancestral Pueblo people that lived here.

The Trail Head is in the Morefield campground area near the part entrance and the hike is a 2.0 mile round trip. There are three hiking trails starting in the Morefield campground area, but none of them pass by any of the famous ruins sites.

There are 32 stops on the self guided trail. In spring, not all of the plants mentioned in the trail guide are in flower, but some are. The first stops on the trail are Gambel Oak and Pinon Pine, two of the most common trees, and also sources of acorns and pine nuts that were edible. Also mentioned are Black Sagebrush and Big Sagebrush, two common shrubs. Big Sagebrush is an indicator of good soil for farming.

In the vicinity of the marker that discussed the blue Spurred Lupine there was a blue flower in bloom, but I think in late May is was Larkspur.

There are some wildflowers along the trail that aren't mentioned in the trail guide. I think this is Clematis in the buttercup family. Clematis is one of the plants identified on the paved trail leading down to Spruce Tree House on Chapin Mesa.

Another flower that was conspicuous in May but not mentioned in the trail guide was this showy white flower that I think is Cliff Fendler Bush. The views from the Knife Edge Trail are from the North Rim of Mesa Verde toward the Montezuma Valley.

Snowberry is a low growing bush with pale pink bell shaped flowers. The Trail Guide says that there was no known Ancestral Pueblo use for Snowberry. Another berry on the trail is Utah Serviceberry, the most common bush in Mesa Verde and probably a source of food. There is also an Elderberry Bush on the trail, the only one that has been found in the park.

The Trail Guide mentions that this bush was so striking that the Knife Edge road was detoured slightly to preserve it. The Knife Edge Road was built in 1914 and served as an entrance to the park until the tunnel between Prater and Morefield canyons was built in 1957.

The Wild Rose has bright pink flowers and red oval shaped berries called "hips." These hips are rich in vitamin C and some have been found in Ancestral Pueblo remains. These roses grow in moist side canyons in dense patches.

A few small Douglas Firs are found along the trail and there are large ones high above against the north facing cliffs. Douglas Firs are also found in the moist canyons such as near Spruce Tree House. The Trail Guide mentions that the most colorful flower along the trail is the bright red Indian Paint Brush, but in late may none were in bloom yet.

Friday, May 8, 2009

Inside Balcony House

The one hour tours at Balcony House at Mesa Verde National Park in southwest Colorado begin in late April, about three weeks after they begin at the famous Cliff Palace. Balcony House is a medium sized 27 room cliff dwelling and is very popular as the tour visit involves the adventure of climbing several ladders and crawling through a short tunnel.

Another difference about the Balcony House tour is that the visitor goes deep inside the sandstone alcove, rather than just along the front. The tour has five stops. There is an introduction at the beginning, a pause and view before descending a metal stair case and another pause before climbing the 32 foot double ladder. The fourth stop is in the plaza area where the well preserved balcony is visible.

After the discussion in the plaza, the route to the other side of the site involves a short climb and maneuvering around behind the structures to the back of the alcove, something that the other large alcove sites don’t allow.
The back of the alcove has a seep spring that provided water for the site. The Balcony House is a little unusual in that it faces mostly east rather than south, and doesn’t catch much sun in the cold winter months. The back of the alcove is thought to have been a refuse disposal area.

The fifth and last stop is in the area where the two site Kivas are side by side. These Kivas seem to be particularly deep and perhaps the extra insulation made up for the lack of solar heating here. Near the exit, there is a display of grinding stones that would have been used to grind corn.

Some of the ranger discussion talked of how these people suffered from decayed teeth. Sand from the corn grinding would end up in their food and wear their teeth down. The other observation was the prevalence of arthritis, from the kneeling and probable carrying of materials in a difficult location. There has been little observation of signs of violence.

The highlight exit is to crawl on hands and knees through the 12 foot tunnel. This was the entrance and exit that the people who lived here used. The entrance the tour uses was engineered by the Park Service.

Looking down on the tunnel from above, it appears that it was originally just a narrow crack in the sandstone. It looks like a ceiling was added to the crack and the gap filled with masonry. Some effort was made to make the site secure from unwanted visitors and this is one of the mysteries of the cliff dwellings.

Some sites show signs that security was a concern, but others do not. After visiting Balcony House, the nearby Soda Canyon Trail offers a 1.2 mile hike through the Pinon Pine and Utah Juniper forest to three canyon overlooks. From the first two overlooks, there are somewhat distant views of Balcony House.