JJ Bjordahl

Above: Goat Rocks Wilderness, North of Old Snowy, South of Packwood Glacier, looking Southwest toward Loowit (Mt. St. Helens).

Tracing the horizon. The above image shows a smokey landscape while the lower graphic illustrates the named peaks, their elevations and approximate distances from the same vantage. Summer 2025

Maintaining the Public Land Survey System (PLSS) in the Columbia River Gorge National Scenic Area.

BT-I-310.pdf

Above is among the first Public Land Corner Maintenance Reports with my name on it.

2024: PLC Quick Links [Personal Copy]

A clunky but effective solution- a Google Sheet authored to replace three ring binders, Thomas Guides and handheld GPS for field staff. Users input a Public Land Corner (PLC) number and field relevant information is pulled.

Asset Mapping and Project Tracking Samples Using Google Maps

Looking for Giants (Yggdrasil in a Haystack), LiDAR Project

Pictured above: One of the trees I sought in the Looking for Giants (Yggdrasil in a Haystack) project- some work samples shown below. The project was developing methods for locating individual mature / ancient / old growth trees and thus protectable habitats, using public LiDAR data.

From Looking for Giants (Yggdrasil in a Haystack): Above is a animated GIF showing visualized samples of Watershed Delineation, Canopy Height Modeling, Canopy Density Calculations, Tree Crown Delineation, Lidar Extraction & 3D Modelling. Fall 2020

Canyoneering Cartography, Utah & Arizona

Buckskin Gulch & Paria Canyon, Winter 19/20.

"Buckskin is the longest slot canyon in the U.S., and some consider it the longest in the world. It's also one of the most dangerous. " - Jennifer Billock (Smithsonian)

Portland Metro's Native Plant Center, Data Visualization

NPC Phenology Project Sample

A Phenology Data Visualization Project for Metro's Native Plant Center. Spring 2019

(sample only)

3D Interactive Modelling

Wy'East (Mt. Hood) topography cookie-cut to the Timberline Trail. From a Digital Elevation Model (DEM) to a 3D object. (Click image to navigate)

Topographic Visualization

Tahoma's (Mt. Rainier) Wonderland Trail stylized.

Jobsite & Asset Cartography

A job site map for a project involving Metro and Multnomah County, 48"x36"

Asset mapping for projects involving City of Portland's Water Bureau and Multnomah County, 48"x36"

Wildlife Habitat Data Visualization and Analysis

Remote Camera Trap Sites in the Mt. Hood National Forest & A Sierra Nevada Red Fox (Vulpes vulpes nector) Site Suitability Assessment with Locations of Positive Identifications, 2010-2017. For Cascadia Wild & USFS.

Popular Trails Stylized

Popular NW circumnavigation trails, a project in progress.

On the summit of Wy'East / Mt. Hood, 2025

Google Sites

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