Both the US and Mexico make available free, high quality, detailed topo maps at various scales!
Download US topo maps at the USGS Store. Use the locator map to find your desired location, then click to get a location bubble, which you then click on for a list of…
The Apachian-Madrean region is a zone of confluence and geographic termini of species and floras from the north and the south. Lower and intermediate elevations support many taxa of tropical plants and animals that are at their northernmost limits. It is a region of tremendous habitat diversity…
More info on spiny-tailed iguana at the Tucson Herp Society.
Articles
Sierra del Tigre, manto de biodiversidad Expeditión a favor de la ciencia y la conservación Es Sierra El Tigre refugio de alacranes Largo, difícil, pero majestuoso camino Pequeños insectos que sirven para polinizar Viven para la conservación de la naturaleza…
This was a long trip over a short distance. A large cadre of biologists from Arizona and Sonora made the trip to enhance biological data about the mountain and region.
The trip was initiated near Nacozari de Garcia with the destination being the high point of the Sierra el Tigre just…
The Sierra la Mariquita was decreed a Voluntary Protected Natural Area on May 12, 2015. This Sky Island is owned by the Instituto Nacional de Astrofiscica (the Mexican national astronomy organization).
The Sierra San Francisco is a low-desert mountain range at the edge of the Gran Desierto of northwest Sonora. This range is owned by an ejido and protected as desert bighorn sheep habitat.
Early 2015 was quite lush due to good winter rains and previous-year hurricane remnant…
By Huck
Recently I had the opportunity to see, by raft, the country I've been tramping overland for the last couple of decades. Just getting to the put-in of our trip was a logistical conundrum and an exercise in patience. We needed a shuttle driver who was…
Peter Warshall was able to excel in many divergent endeavors. He chose to put his multi-faceted talent into bettering the world. I knew him through struggles to protect Mt Graham, interests in biogeography, and work to protect jaguars and other species in eastern Sonora. Any time I read…
On August 7, 2014 ten million gallons of a mining wastewater solution broke through containment at the Buenavista copper mine just outside of Cananea, Sonora. The sulfuric acid solution was released into the Rio Bacanuchi, a tributary of Rio Sonora, one of the largest watersheds in Sonora.
…By Garry Rogers
(First in series on Sonoran Desert invasive plants.)
Introduction to Invasive Plants in DesertsInvasive species, like storm troopers leading the surging ruin of global warming, are demolishing Earth's ecosystems.
Photograph: Once diverse…
Is there a new highway planned to bisect the pristine El Pinacate and Gran Desierto de Altar Biosphere Reserve? It appears that it is at least an idea from photos acquired by Wild Sonora. These maps seem to show a 4-lane separated highway cut-off from Route 2 through the sand dunes just west of…
