Broad Distribution of Flower World Imagery in Hohokam Petroglyphs: In this article Hernbrode and Boyle compare the proportion of core Flower World imagery at a number of sites in Arizona and conclude that Signal Hill, Cocoraque Butte, Sutherland Wash Rock Art District, Tumamoc Hill and the Webb Petroglyph Site, all located ‘near’ Tucson, all have strong evidence of the Flower World Complex. They also conclude that there is “scant evidence” of Flower World Complex petroglyphs at several other more distant sites – South Mountain, Charlie Bell Well and the Picacho Mountains.
“bighorn responded to increased human activity by bedding. Bedding likely decreases the potential for both detection or interaction with humans and would be a more energetically conservative approach to avoidance that may be exhibited in part due the predictable nature of concentrated visitor use on established trails.” (p. 27)
“A study of the former population of bighorn sheep by Schoenecker and Krausman (2002) found 18% of visitors observed engaged in off trail use between 1994 and 1996. In contrast we documented roughly 1.5% off trail use from January 2015-May 2016 suggesting current human use of the PRWA may be largely confined to established trails” … “We speculate that the effects of urbanization around the PRWA may have also inadvertently restricted visitor use to established trails by limiting non designated access points around the base of the study area that were present during the former population.” (p. 28)
Not currently included with the paper is a detailed analysis of the visitation data, Brett indicated in an email that he is “still working with the Coronado National Forest to quantify all the visitor use data” – hopefully this data will be available at a later date!
Paul R. Krausman has worked on Bighorn Sheep research in the Santa Catalina Mountains for many years and in this book he brings together a wide variety of scientific and historic information about the sheep in the Pusch Ridge Wilderness. I think it is fair to say that the book is written for a professional/academic audience – but it is certainly accessible enough to be interesting to someone like me without a wildlife related degree. Two excerpts that might inspire you to read more:
“there is no evidence that predation, limited water, disease, or the presence of other ungulates contributed to the demise of the desert bighorn sheep in the Pusch Ridge Wilderness. However, the increasing human population from Tucson and surrounding areas encroaching on bighorn sheep habit, and related urbanization, have not been positive influences… there is strong evidence that urbanization and habitat alteration were major influences in their extinction” (pp. 141-142)
“when bighorn sheep are translocated back into the Santa Catalina Mountains, they will likely continue to need assistance from humans, including predator control, prescribed fires, periodic transplants to enhance genetic diversity and mitigate the loss of corridors to other mountain ranges, and restrictions on humans in their habitat” (p. 157)
Cottonwood Tank is located on the west side of the Pusch Ridge Wilderness south of Catalina State Park. It appears that Arizona Game and Fish did maintenance work in 2017 and the tank is currently holding quite a bit of water.
Sadly, also apparently in 2017, a substantial amount of the tank is covered in graffiti.
Buster looks at the mountains and shifts to teaching the old geography, one that has slightly different notes from the modern hiking maps. The first gouge to the west he calls Alamo Canyon because there used to be a big cottonwood up there. Then comes Cement Tank because they put a trough in there. After that is Dead Horse for a dead horse found one day. Then Montrose on whose upper reaches Buster Spring bubbles away. And over the ridge from that is Romero for the old ranching family that came into the county in the nineteenth century. When Buster arrived in the 1920s they were still here, still ranching. And they became his neighbors.
Dead Horse Canyon is in the Santa Catalina Bighorn Sheep Management Area – lacking an official trail travel into this area is prohibited from January until May, but the summer heat means that it will be next winter before a pleasant visit is possible.
Bighorns have been documented in Dead Horse Canyon for many years – according to And Then There were None 8% of the Bighorn Observations made from 1936 to 1978 were in Dead Horse Canyon (p.88) and the photo shown below (of bighorn in Dead Horse Canyon) is described as “the largest number of sheep ever photographed as a group in the Santa Catalinas”. In 1972 bighorn permits were issued to 5 hunters, 2 kills were made – one at the head of Dead Horse Canyon (the last permits issued were in 1992).
Coronado National Forest Fee Proposal – Coronado National Forest: News articles about and the press release for the Fee (Increase) Proposal were from a post here in November – the link leads to the official page for the project and is a good starting spot if you are interested in submitting a comment about the proposal (comments due by May 1, 2018). I think that the list of ‘New Fee Sites’ is worth reading thru and considering – included from the Santa Catalina Mountains are the Bigelow Trailhead, Butterfly Trailhead and Windy Point Vista Day Use Area.
Improvements at Marshall Gulch Picnic Area and Trailhead – Coronado National Forest: If this topic, or the illustration below, seem familiar it is because the first comments on this plan were taken in 2010… The long running process to redesign the Marshall Gulch Trailhead appears to be in the final stages and on 10/27/2017 the Draft Environmental Assessment was published. If this plan goes forward it will not increase the number of parking spaces available but will attempt to restore the convergence of Marshall Gulch and Sabino Creek and make the area easier to navigate on busy days. An interesting note on visitation from the EA:
On average, the site receives over 65,000 cars each summer (May through September), which includes those just driving through and others who stop to use the facilities (Forest Service, unpublished data, 2010). Assuming that there are an average of 2.5 visitors per car, estimated use is 162,500 visitors. This does not include walkin use from Summerhaven and walk-in use during the winter when the gate is closed.
The Coronado National Forest is now taking applications to operate the Sabino Canyon Shuttle System. The Sabino Canyon Shuttle Prospectus page has the relevant documents – the documents contain quite a few details about the shuttle system including limits on and requirements for the number of trips the shuttle makes, required operating hours and details about the costs/revenue involved – among the details was this statement about visitation to Sabino Canyon:
Visitation by private vehicle totals approximately 520,000 people annually; it is estimated that the Sabino Canyon Recreation Area receives more than one million visitors per year (Feasibility Study, 2010). Actual visitation to the Sabino Canyon Recreation Area is difficult to quantify, as the public may visit at any time of day and may to arrive on foot, on horseback, or by bicycle, as well as by private vehicle.
Meet the Black Friday resisters – KGUN9: This article made me laugh a little – I assumed it would be about a serious protest but instead was about people getting outside and avoiding the Black Friday deal-shopping crowds! Of course, I highly recommend joining the movement…
Popular Sabino Creek is bone-dry after months with no rain – Arizona Daily Star: Sabino Canyon is on a dry streak as we head into 2018, no surprise given the weather… The USGS makes data from Sabino Canyon available online and there is discharge data available back to late 1987. The graph below show data from 1988 to the end of 2017, this presentation is far from perfect – high spikes are cut off, some very low numbers are essentially hidden and this is just the raw data with no filtering for data quality – but it is still interesting to quickly scan thru:
Endangered Gila Topminnow Returns to Santa Cruz – Arizona Public Media: One explanation offered for the prescence of the Topminnow in the Santa Cruz is that “they may have reached the Santa Cruz from Sabino Canyon via the Rillito River”.
Suntran Sabino Canyon Sun Shuttle – Sun Tran: For the brief period of 12/26 to 1/1 there was shuttle service from Udall Park to Sabino Canyon – even with overflow parking available it can occasionally still be a challenge to find parking in Sabino Canyon and this service is a nice detail.
Rescues/Accidents/Incidents including information from SARCI’sSARNews:
12/11/2017 La Milagrosa Trail: Not a rescue but an interesting report because it was a false alert due to an accidental emergency beacon activation – no details were given about how the beacon might have been activated.
12/18/2017 Romero Canyon Trail: Two hikers were unable to find the trail after entering Romero Canyon – they found the trail before help arrived.
12/23/2017 Seven Falls Area: An ankle injury leads to a carry and ‘reindeer’ ride out.