下面是我找到的canyonland national park 禁止攀爬拱门的信息

由于这一带特殊的地貌吸引了众多的攀岩爱好者。这个公园规定了什么可以攀爬什么不可以。 其中任何拱门都不允许攀爬。

http://www.nps.gov/cany/planyourvisit/climbing.htm

The sandstone towers at the Island in the Sky attract the most rock climbers. Little climbing is done in the rest of the park due to the poor rock quality and a lack of established routes. Permits are not required for technical rock climbing unless it involves an overnight stay in the backcountry.

Regulations

Technical rock climbing is prohibited in the Salt Creek Archeological District in the Needles, in Horseshoe Canyon, into any archeological site or cultural resource, or on any arch or natural bridge in Canyonlands National Park or the Orange Cliffs Unit of Glen Canyon NRA named on a USGS map, with the exception of Washer Woman Arch at the Island in the Sky. The intentional removal of lichen or plants from rock is prohibited. The physical altering of rock faces by chiseling, glue reinforcement of existing holds, and gluing of new holds is prohibited. The use of motorized power drills is prohibited.