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BLM | 2017
The BLM National Operations Center (NOC) has partnered with the BLM Arizona State Office and the Safford Field Office to document and measure the impacts of the HX Dam failure, which occurred in June…
BLM | 2017
The BLM is employing high-resolution commercial satellite imagery as a pilot effort to map saguaro locations within Sonoran Desert National Monument, Arizona. Saguaro are a distinctive cactus species…
BLM | 2017
Hillshades are useful in depicting additional details in terrain and emphasizing variation in topography, which contributes to effective cartographic interpretation. However, digital hillshade…
BLM | 2017
The BLM National Operations Center (NOC) regularly assists field offices with photogrammetric and remote sensing projects involving Unmanned Aerial Systems (UAS) in a variety of natural resource…
BLM | 2017
Located 15 mi east of Rock Springs, Wyoming (41.6641°, -108.9526°) the Pierotto irrigation diversion on Bitter Creek is threatened by stream erosion and undercutting. The diversion was constructed in…
BLM | 2017
The BLM uses Google Earth Engine (GEE) to leverage remote sensing data for resource management across multiple geographic scales. GEE provides a cloud computing architecture for accessing, processing…
BLM | 2017
The BLM has instituted field-based Assessment, Inventory and Monitoring (AIM) methods to characterize ecosystem condition and trends for public lands. AIM provides a statistically valid sampling…
BLM | 2011
Lidar and aerial photography are valuable tools for preliminary investigations by cadastral surveyors. Boundary disputes are often decided using survey information. Remote sensing data…
BLM | 2011
The Pacific Northwest Hydrography Framework is sponsoring a working group tasked to evaluate the use of lidar-derived DEMs as a principal data source for updating the National Hydrology Database (NHD…
BLM | 2011
The Oregon BLM State Office developed a semi-automated technique to map juniper distribution for specific project areas. The technique uses 0.5 meter color infra-red NAIP imagery to identify…
BLM | 2011
The famous Laetoli footprints were made by a human ancestor 3.56 million years ago in the Rift Valley of Tanzania and are the earliest fossil evidence of bipedalism in our ancestors. The trail…
BLM | 2011
The revised Statue 2477 (RS2477) was enacted by Congress in 1866 to facilitate western settlement. It granted “the right-of-way for the construction of highways across public lands not…