Natural Resource Condition Assessments for Glen Canyon National Recreation Area

The Natural Resource Condition Assessment (NRCA) Program provides framework, funding, and publishing support to parks to aid in the synthesis and documentation of natural resource conditions. Condition assessment reports are a tool to describe selected park resources, and record a snapshot of their current condition, identify trends, and identify potential or current threats and stressors. Understanding the condition and trend of natural resources is key for parks and NPS planners to appropriately prioritize and allocate stewardship resources.

Small pools of water filling holes eroded in red-orange sandstone
Glen Canyon National Recreation Area encompasses more than 0.5 million ha (1.25 million ac) and extends over 322 km (200 mi) from its northern boundary in southern Utah to its southern boundary in northern Arizona. It is one of the most rugged, remote, and floristically diverse national parks on the Southern Colorado Plateau and has more than 4,900 km (3,045 mi) of waterways flowing through its eight watersheds.

GLCA’s larger perennial rivers include the Colorado, Escalante, Dirty Devil, San Juan, and Paria, with smaller perennial and intermittent streams flowing into each of these rivers. After the creation of the Glen Canyon Dam, Lake Powell formed, covering 13% of the park’s total land area when full.

The national recreation area attracts over 4 million visitors annually, and in 2019 GLCA ranked 19th highest in recreational visits out of all national parks.

NRCA Publications

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    For other reports and natural resource datasets visit the NPS Data Store.

    Source: Data Store Collection 7765 (results presented are a subset). To search for additional information, visit the Data Store.

    Last updated: July 15, 2022


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