Next newbie question of the day:
Does proximity to canyon walls seriously affect the accuracy of GPS units?
I hiked at a place called Smith Rock near the town of Terrebone, Oregon:
44°22'5.02"N,121°8'21.35"W
It is in a canyon along the Crooked River. The geopoint is at the bottom of the canyon just across a bridge over the river. There is a rock wall face that rises sharply about 800 feet that I walked along at the bottom during the hike. The rock face is vertical much of the way and, as such, is a very popular rock climbing location for serious rock climbers in the Pacific Northwest.
My track for this hike was highly inaccurate which I found surprising. It had me crossing the river numerous times when I did not. It showed me well off the trail when I was not. It was upwards of 100 feet off in some places and was way off when I was right next to the rock wall photographing climbers.
I'm wondering now if the canyon walls were affecting it's accuracy. That would be a disappointment because I will do many canyon hikes. Some of them with much higher walls adn some including slot canyons.
I know my unit does not have a sirf chipset and that makes a difference. Just how much of a difference I don't really know.
Anyone care to comment on GPS accuracy in canyon settings?
Does proximity to canyon walls seriously affect the accuracy of GPS units?
I hiked at a place called Smith Rock near the town of Terrebone, Oregon:
44°22'5.02"N,121°8'21.35"W
It is in a canyon along the Crooked River. The geopoint is at the bottom of the canyon just across a bridge over the river. There is a rock wall face that rises sharply about 800 feet that I walked along at the bottom during the hike. The rock face is vertical much of the way and, as such, is a very popular rock climbing location for serious rock climbers in the Pacific Northwest.
My track for this hike was highly inaccurate which I found surprising. It had me crossing the river numerous times when I did not. It showed me well off the trail when I was not. It was upwards of 100 feet off in some places and was way off when I was right next to the rock wall photographing climbers.
I'm wondering now if the canyon walls were affecting it's accuracy. That would be a disappointment because I will do many canyon hikes. Some of them with much higher walls adn some including slot canyons.
I know my unit does not have a sirf chipset and that makes a difference. Just how much of a difference I don't really know.
Anyone care to comment on GPS accuracy in canyon settings?