Expect Isolated Afternoon and Evening Thunderstorms Through the Weekend
Monsoonal weather patterns have moved into the Grand Canyon area decreasing fire danger. As a result, on Tuesday, July 8 at 8 a.m. fire managers lifted fire restrictions within Grand Canyon National Park. More »
Two Bats Collected in the Park Have Tested Positive for Rabies
One on the North Kaibab Trail and the other at Tusayan Ruin/Museum. Any persons having physical contact with bats in Grand Canyon National Park, please call 928-638-7779. Rabies can be prevented if appropriate medical care is given following an exposure. More »
Archeology River Monitoring Program
Introduction to the Grand Canyon National Park Archeology River Monitoring Program
The survey was conducted from August 24, 1990 to April 30, 1991. During this time some 1,968-person days were spent surveying about 10,506 acres. A total of 475 archaeological sites and 489 isolated occurrences of artifacts or features were located and recorded. Regarding the impacts of Dam operations on archaeological sites, it was judged initially that 336 of the 475 recorded sites existed in locations that could potentially be adversely affected by changing water releases. Since 1992, the NPS archaeologists monitoring sites have been able to refine site impact categories identified by Fairley et al. 1994. To date, 264 sites are considered affected (directly, indirectly, potentially and cumulatively) by the operations of Glen Canyon Dam.
Therefore, a crucial document created to guide Reclamation's Section 106 compliance in conjunction with other NPS legal mandates is the 1994 Programmatic Agreement (PA). This PA, regarding the operation of the Glen Canyon, was signed by officials of the U.S. Bureau of Reclamation (Reclamation), the Advisory Council on Historic Preservation (ACHP), the Arizona State Historic Preservation Officer (SHPO), the U.S. National Park Service (NPS), and six Indian Tribes and Nations -- the Hopi Tribe, the Hualapai Nation, the Kaibab Paiute Tribe, the Navajo Nation, the Paiute Indian Tribe of Utah for the Shivwits Paiute Tribe, and Zuni Pueblo -- with an interest in the affected cultural resources listed on the National Register of Historic Places. Implementation of this agreement fulfills Reclamation's responsibilities for Section 106 of NHPA relative to Glen Canyon Dam operations and also satisfies NPS needs.
The PA outlines the responsibilities of Reclamation for the mitigation of these adverse effects under Section 106 of NHPA, spelling out the responsibilities of the RCMP as follows:
Currently, all work conducted by archeologists has been completed under stipulations in a Monitoring and Remedial Action Plan (MRAP). The processes delineated in the MRAP guide the ongoing process for the identification, monitoring, and remedial actions on cultural resources impacted, or potentially impacted, as a result of the operations of Glen Canyon Dam.
The following are summary reports produced by the NPS after each field season. They identify the sites that were monitored and their current condition and the sites that have received remedial actions. The FY1999 report is an exceptionally large document, therefore only the Executive Summary is supplied. For additional information on FY1999 summary report or on any other report please contact us through this web page. Thank you for your interest.
Download the Fiscal Year 2005 Report (3.06MB PDF File)
Download Checkdam Photographs from the March 2005 River Trip (1.04MB PDF File)
Grand Canyon National Park Archeology River Monitoring Program Annual Reports from prior years may be downloaded here in the PDF File format.
Fiscal Year 2004 Report (3.18MB PDF File)
Grand Canyon National Park Archeological Resources
The River Monitoring Program
generates data regarding the effects of Dam operations on historic properties, identifies ongoing impacts to historic properties within the APE [Area of Potential Effect], and develops and implements remedial measures for treating historic properties subject to damage.
Did You Know?
President Theodore Roosevelt said of Grand Canyon, "Leave it as it is. The ages have been at work on it, and man can only mar it. What you can do is to keep it for your children, your children's children, and for all who come after you, as one of the great sights which every American should see."